Slack

4.7 (22,945)
A single place for team communication and workflows

Overall rating

4.7 /5
(22,945)
Value for Money
4.5/5
Features
4.6/5
Ease of Use
4.6/5
Customer Support Software
4.4/5

95%
recommended this app
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22945 Reviews

Ewan
Overall rating
  • Industry: Hospitality
  • Company size: 51–200 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 10.0 /10

Ended internal email overload in one day!

Reviewed on 06/11/2019

Making progress on internal discussions can start in seconds with a Slack group chat. It is hard to imagine a way of managing teams in different countries any other way. Slack removed a reliance on internal emails which often fell short where key people weren't copied in or involved in the discussion. In a similar way, it avoids the CC happy emails where some team members may not need to be included and is an unnecessary distraction. With public channels, anyone can decide if they continue to remain invovled or just choose to 'mute' a channel, even just for a period of time.

After using it for over 2 years now, the results are that people in our organisation can manage their communication and let it fit in their workflow. With various integrations it can also be a real timesaver when on the move.

Pros

The options of private/direct group conversations and public and private channels make the various types of cross-team communication most companies need so simple that it's hard to remember how we got anywhere when relying on email.

As a personal favourite feature, the option to upload custom emojis makes messaging easier, not just for fun but in the cases where logos/symbols can be easily understood by everyone, it makes quick shorthand.

Cons

Someone who reccomended this product did warn to be careful that it may take over our lives, and they weren't wrong! Through no fault of Slack , the ease of adding channels, setting up groups etc does admittedly add to the noise that can sometimes be a distraction.

The Slack call quality can sometimes be unreliable and audio quality isn't amazing.

Alternatives Considered

Yammer and Google Meet

Reasons for Switching to Slack

We barely tried alternatives as Slack was so highly reccomended, by the time we begun evaluating it , it was already sold. If there were other software used for 'Chat' they will all have been removed.
Chris
Overall rating
  • Industry: Civil Engineering
  • Company size: 201–500 Employees
  • Used Weekly for 1+ year
  • Review Source

Overall rating

  • Ease of Use
  • Likelihood to recommend 9.0 /10

Slack removes the slack in your lines of communication.

Reviewed on 16/04/2023

I believe that Slack is an incredibly powerful tool that can help teams collaborate effectively. I can honestly say that Slack’s ease of use is a big factor in what enabled me to complete my remote degree coursework successfully. For example, when project partners and I were on a tight deadline, we created a Slack channel dedicated to that project, and we were able to quickly communicate and coordinate our efforts.Overall, I highly recommend Slack to anyone looking for an effective and easy-to-use communication tool. Its versatility, integrations, and ease of use make it an indispensable part of my workflow.

Pros

Slack’s goal in life imo is to bring all communication channels into one place. I used Slack when getting my Master’s degree in Applied Data Science online. Getting a Master’s degree online, although now very common, was still very daunting. I quickly found Slack to put my concerns of remote learning at ease. Thanks to some diligence on the university’s side, they set up Slack to very seamlessly structure and manage all conversations by making devoted channels for each course as well as more general use channels like “Admissions” and “Office Hours”. Slack’s UI is very easy to understand, and it keeps the natural chaos that emerges from lots of conversations and sub-conversations at bay.

Cons

One disadvantage of Slack is its pricing. While Slack does offer a free plan, it is limited in terms of message history, storage, and integrations. If you want to unlock more features and functionality, you'll need to upgrade to a paid plan, which can be quite expensive. In comparison, some competing tools, such as Microsoft Teams, offer more affordable pricing options. While Slack is an excellent tool for team communication and collaboration, it does have some limitations when it comes to project management. Although Slack does offer some project management features, such as the ability to create to-do lists and assign tasks, it is not as robust as dedicated project management tools such as Asana or Trello.

Chaya
Overall rating
  • Industry: Computer Software
  • Company size: 51–200 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 7.0 /10

Slack – Managing projects optimally

Reviewed on 18/04/2019

Slack is a tool which can be used as a project management tool for managing projects and also it can be used for internal communication inside a project group or a company. Each project group can have its own channels inside the company workspace. Communication through private and public channels has made Slack more popular among the users.

Pros

Slack can be considered as a project management tool. Slack provides both mobile version and desktop version applications where the mobile version is installed in the mobile phone so that whatever may be the situation user may not miss any important information about the project instantly. While the desktop version helps to transfer files of the working project easily while working on the project. Slack provides the facility to share the files, folders, audio and video clips, links. there are private and public channels in slack. Users can be added to these channels and if the users prefer they can have their own personal chats through slack. The emojis, stickers, GIF are also added In Slack to provide better user experience and attract the users with its familiar look to most of the social media or texting apps.

Cons

In order to use Slack users need to have a proper network connection. Without proper network coverage, Slack won’t work. Sometimes messages won’t be delivered to the other side after a selected time(10 PM). Unless the user sets his or her state into active user won’t receive notifications after 10 pm. If the state is away then the messages sent after 10 pm won’t be delivered till the next morning. Because of this sometimes users may miss some important messages. It is both an advantage and a disadvantage too. There is no mechanism to know whether the receiver read the message or not once a message is sent. The sender has to wait until other messages come from the receiver acknowledging that the receiver read the message.

Nandita
Overall rating
  • Industry: Computer Software
  • Company size: 1,001–5,000 Employees
  • Used Daily for 1+ year
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 9.0 /10

Collaborate with Slack

Reviewed on 08/02/2023

Slack is intelligent tool with great features. It is highly recommended to business for easy communication. It can be a go to tool for daily activities and file sharing.

Pros

The tool can be integrated with several other tolls such as dropbox, shared drives and other platforms

Cons

The tool can be made more customisable and more cheaper, otherwise a great product to use.

Alternatives Considered

Cisco Jabber

Reasons for Switching to Slack

It is more accessible with more features than cisco jabber
shelly
Overall rating
  • Industry: Information Services
  • Company size: 5,001–10,000 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 10.0 /10

SLACK : Ease of communication for remote workers.

Reviewed on 16/04/2023

Overall experience is very good with slack, all the features are well thought for. It is a boom for remote workers like me with file sharing , 1 click calls , screenshare features. The improvement that can be done is giving a record option for calls. Sometimes knowledge transfer sessions have to be recorded for future references.

Pros

Slack call is the feature which I like the most about slack. We don't need to schedule it like in google meetings we have send an invite. Here if we want to connect with people who are online that particular time we can just connect with then. It's a time saver.

Cons

The calls with multiple attendees is very difficult to start and also we can't hide our background. Sometimes while working from home we don't want to show our house so that feature can be improved. Also there is no way to record the slack calls.

Jack
Overall rating
  • Industry: Consumer Goods
  • Company size: 11–50 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 10.0 /10

Efficient Communication and Collaboration: My Positive Experience with Slack

Reviewed on 17/04/2023

Overall, my experience with Slack has been positive. It has greatly improved our team's communication and collaboration, allowing us to work together more efficiently and effectively. The platform's user-friendly interface, integration with other tools, and collaboration features have made it a valuable tool for our team's workflow. While there is potential for information overload, Slack's customization and notification features help mitigate this issue.

Pros

As a Slack user, I appreciate:User-friendly interface: Slack's easy-to-use interface allows for efficient communication and collaboration.Integration with other tools: Slack's seamless integration with other platforms streamlines workflow.Collaboration features: Screen sharing and video calls improve remote teamwork capabilities.Overall, I appreciate how Slack has streamlined our team's communication and collaboration, making it easier for us to work together efficiently and effectively.

Cons

One of the things I like least about the platform is the potential for information overload. With so many channels and conversations happening at once, it can be challenging to keep up and stay organized. However, utilizing Slack's customization and notification features can help alleviate this issue.

Nicholas
Overall rating
  • Industry: Computer Software
  • Company size: 51–200 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Likelihood to recommend 10.0 /10

The best way to communicate asynchronously

Reviewed on 15/04/2023

I love using Slack for what it does best: keeping important communication out of my email inbox. I hadn't used it much before my current job, and I'm very glad I was introduced to it. If I ever worked for a company that didn't have a tool like Slack, I'd make sure they acquired it ASAP.

Pros

As long as you've used tools like MSN, AIM, or Facebook Messenger before, you'll be able to pick up Slack in minutes. That makes it a super valuable tool, since deployment is so easy.Creating channels to manage the communications of multiple teams across different topics and projects is incredibly valuable — it keeps communication from getting too messy.Slack integrates seamlessly with a ton of super valuable apps, including Asana, Google Drive, and Google Calendar.

Cons

One of the unfortunate drawbacks of Slack is it's created an entirely new problem in replacing email; too many notifications. I personally keep Slack off of my phone, since I know other folks have trouble dealing with so many notifications. This might be less an issue with the tool itself, but rather with the tool category. Be mindful that you'll need processes around this stuff if you use Slack or one of its alternatives.

Daniela
Overall rating
  • Industry: Information Technology & Services
  • Company size: 201–500 Employees
  • Used Daily for 6-12 months
  • Review Source

Overall rating

  • Ease of Use
  • Likelihood to recommend 10.0 /10

Slack is the best tool to virtually communicate within a company

Reviewed on 15/04/2023

Overall Slack is a great and efficient tool to chat with team members and communicate on quick issues. It is friendly to the user and has a lot of tools for integration. It has been a better experience compared to other apps that I've used in the past.

Pros

What I like most about Slack is that you can create channels so different teams can collaborate and keep communication about a topic or report issues and everyone can be informed instantly. You can also create a huddle to meet immediately for quick discussions. I also like that you can add reactions to messages, it's a fun way to communicate. Overall it's a very friendly and useful application.

Cons

Sometimes the mobile app shows that you still have unread messages from a channel when you already read all of them. Huddle can be improved.

Udit
Overall rating
  • Industry: Information Technology & Services
  • Company size: 51–200 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 9.0 /10

Streamline Communication And Improve Productivity

Reviewed on 17/04/2023

Whether we are in the same office or working remotely, it enables teams to interact and cooperate in real-time. Slack offers a fantastic central center for organizing workflows and tasks because of its integration with various tools and resources. Slack is an excellent corporate tool for streamlining communication and collaboration, in my opinion.

Pros

In daily work, it has proven crucial for coordination and communication. We have used it on a number of projects, and it has aided with file sharing, task tracking, and constant communication regarding project status. We can share pictures, gifs, and remarks about the news or current events, which keeps us informed and enhances our working atmosphere.

Cons

Important communications may get lost in a sea of chats due to the sheer volume of notifications and messages users receive. Except that, I have no issues. It is neat, simple, and appealing to the eye.

Katherine
Overall rating
  • Industry: Insurance Software
  • Company size: 201–500 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 10.0 /10

Mostly Perfect tool.

Reviewed on 15/04/2023

Pros

Slack's usability and comprehension are crucial. Teams in the office, in my opinion, seek to do too much, whereas Slack just ensures that talks are open, clear, and current. To keep team interactions organized, the ability to flip between private messages, public channels, and closed channels is quite important. Slack is used for all internal communication, while email is used for all external interactions, and it works well.

Cons

What I dislike about Slack is that it may be overwhelming because of the large amount of notifications, messages, and discussions that can occur on the site. It may be tough to keep up with all of the notifications and discussions, making vital information easy to overlook.

Margy
Overall rating
  • Industry: Legal Services
  • Company size: 11–50 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 10.0 /10

Remote working? You'll LOVE "the Slack."

Reviewed on 19/11/2019

As described above, slack helps me communicate with my colleagues, both professionally and personally. It does so with few glitches, quietly, appealingly, and seamlessly. Slack has helped me develop closer relationships with members of my teams, as well as reach out and develop relationships with colleagues with whom I don't usually interact.

That said, the meat and potatoes is this: slack keeps me in touch with my teams even though we work in different places, in different time zones, and at different times. It helps us stay in touch, keep friendly communication open, and it allows us to easily share documents and truly collaborate.

Pros

Slack is a MUST for remote workers. The ease of setup makes it fantastic. The ease of use makes it phenomenal. The ability to collaborate and work together, to chat and have water cooler talk when your team all work in separate locations, is priceless.

One thing that I appreciate: slack allows you to customize your away times and notification snoozes. It's a really pleasant experience, and its notifications are similarly "unfrustrating." There's nothing quite like being interrupted by an annoying noise or a badge popping up somewhere in your periphery when you're focusing on something difficult, only to be totally distracted. I also appreciate that you can bypass snooze settings for those moments where urgency is actually necessary (hint: it never is ;) ).

Next: I appreciate that slack doesn't make sharing documents needlessly complicated - why add extra bells and whistles you don't want or need? It's easy, collaborative communication and document sharing for people who want it.

The best part: slack keeps me in touch with my colleagues. I know that sounds stupid, since it is a COMMUNICATION TOOL, but it really does. It keeps our lines of communication open, obviously, for discussing work projects and tasks, planning and checking in, etc. Above that, though, using slack also means we work on building our interpersonal relationships, meaning we become better at communicating with one another over time. I really appreciate that. Thank you, slack!

Cons

Honestly, I cannot think of anything I dislike about slack. I guess if I had to grouse about something, it would be that the "generic" icons (when you don't upload your own photo) have changed a few times, and I liked the original ones best.

Can I just add that if that is my only complaint, they must be on to something?

Matthew
Overall rating
  • Industry: Information Technology & Services
  • Company size: 501–1,000 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Ease of Use
  • Likelihood to recommend 10.0 /10

The Gold Standard For Workplace Communication

Reviewed on 21/07/2020

We have employees all over the world so Slack is our hub for communication. We use it to have conversations, post announcements, and brainstorm ideas. It can also launch video conferences with excellent annotation features which makes it easy to share ideas about a document or piece of code.

Pros

It is extremely easy to use, there are many bots and tools to customize your workspace, and the actual communication tools are superior to the ones offered by Google and Microsoft. For example, the ability to thread conversations, easily set reminders about messages, and other subtle things add up to a much better communication system.

Cons

I have experienced no major negatives as a user of the product. Depending on the number of users in your organization, the monthly cost will start to add up but I think this is similar to their competitors unless you're already paying them for other services that include something like Microsoft Teams, for example.

Alternatives Considered

Flowdock, Microsoft Teams, and Google Meet

Reasons for Choosing Slack

Flowdock was actually a high quality product and the best competitor to Slack that I've tried, but Slack became much more popular and started to have better integrations with other third party services. At this point, Slack has become synonymous with workplace communication software in the same way that Zoom has for workplace video chat.

Switched From

Flowdock

Reasons for Switching to Slack

Slack has better usability than Microsoft Teams and Google Meet. Users inside the company mostly preferred to use Slack even when multiple options were available. The threading functionality is particularly useful. Flowdock actually does conversation threading the best of all the products, but its a smaller player at this point so is probably not considered as often.
George
Overall rating
  • Industry: Marketing & Advertising
  • Company size: 11–50 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 8.0 /10

Slack is not Slacking for your Business

Reviewed on 29/11/2020

We believe Slack deserves a 9/10. There is more interaction on this platform than any other platform I am apart of! Wish they had fixed the group call features better! Maybe an investment in cloud?

Pros

Slack gives users and business the ability to communicate on a platform that doesn't feel to formal like Microsoft teams and it great for the Gen Z/ Mellinial generation of workers. This is importanat because I believe flow of work is also correlated to work habbits. The user experience is flawless for chat and it also create the ability to easily make channels with persmissions like flipping light switch.

Cons

I think one of the cringiest problems with slack is the inability of having a lightweight screenshare and the ability to not have dropped calls. There are many scenarios where we had clients or even our own team meetings struggling to have everyone on the call in sync. It has been a pain so we ended up using Zoom for group calls. We wish Slack didn't have this problem in the first place.

Alternatives Considered

Microsoft Teams

Reasons for Switching to Slack

Costs! Too expensive and no need to have Office 365 for every member of the organization.
Rhonda
Overall rating
  • Industry: Hospital & Health Care
  • Company size: 11–50 Employees
  • Used Daily for 6-12 months
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 9.0 /10

Multifaceted Messaging

Reviewed on 11/08/2022

Some employees are not in the facility for most or all of the day. Slack helps me monitor everyone and is a way for us talk throughout the day. Employees working together or in rotation use slack to stay in touch too. In the morning we get everyone in a quick video conference to plan for the day and update. It's worked well.

Pros

I can create message channels and control or monitor who is in each, settings can be changed to public or private. Individuals can message privately too. I like how the channels are displayed I can find any of them quickly. Video calls can be created without leaving the messages screen. I can usually see and hear everyone clearly.
Links open in the app and when I send photos and videos all load quickly.

Cons

All of the messages aren't saved and I wasn't able to find a way to change the setting. I have had to save folders full of screenshots incase important messages get deleted.
More value for money and less taken out of the lower price tiers would make Slack better too.

Alternatives Considered

Flock

Reasons for Choosing Slack

Microsoft teams was included in 365 but not easy to use. Mattermost is very similar to slack but just not nearly as good.

Switched From

Mattermost and Microsoft Teams
Michael
Overall rating
  • Industry: Nonprofit Organization Management
  • Company size: 51–200 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 9.0 /10

Community Management for Non-Profit organizing

Reviewed on 11/08/2022

Setting up Slack was quite easy once we received a non-profit grant for the standard license. Some people had to be taught in detail but the transition was overall fluid and is now universally considered a smart move.

Pros

Slack enables structured communication within and across working groups (protest planning, tech, outreach, lobbying, etc.). Having access to all relevant streams of communication in one place (that isn't the personal messenging app) is crucial to maintain any semblance of structure.

Cons

It took some time to figure out proper ways to handle our most common workflows with or without bots and integrations (eg. voting, scheduling). Integration with our knowledge base app, Nuclino, remains barely functioning.

Alternatives Considered

Rocket.Chat, Mattermost, and Microsoft Teams

Reasons for Choosing Slack

Managing an organizing group with up to 100 members at a time in 20 telegram groups quickly becomes unwieldy to untenable. Having personal communication and organizing intertwined in such a way, not being able to switch it off, was also bad for our mental health.

Switched From

Telegram

Reasons for Switching to Slack

We couldn't set up a server to run mattermost in a realistic time frame
Gregory
Overall rating
  • Industry: Government Relations
  • Company size: 501–1,000 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 7.0 /10

Daily Slack User

Reviewed on 18/01/2020

We are a political research firm that utilizes hundreds of contractors who give surveys. The surveys change on-the-fly once requirements are met, and as a result contractors must be notified in real-time as they work from home

Pros

Ease of real-time mass communication while at the same time enabling group convo, closed/hidden group convo, and 1 on 1 communication.

Cons

The constant bombardement of msgs that are not applicable to me from various groups im in. There should be a display to notify others of how I'm recieving msgs in a given timeframe

Alternatives Considered

Microsoft Teams

Reasons for Choosing Slack

We found Slack user friendly. When you have tech challenged folks working an online job, it's essential to have software that accomodates them. Oh, and its free up to a point.

Reasons for Switching to Slack

Teams does t allow users to write msgs to thmeselves, not as user friendly, harder to communicate 1 on 1. ( cant see msgs read, etc)
Brittany
Overall rating
  • Industry: Marketing & Advertising
  • Company size: 2–10 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Likelihood to recommend 9.0 /10

Slack is a mainstay for my inter-connected teams and communities!

Reviewed on 17/08/2022

Pros

Slack is hands down my favorite way to keep productive up, communication lines between teams clear and more concise, and as a way of messaging back and forth in a pretty straight-forward, not super distracting way.

Cons

There is not really a complaint I can think of in regards to Slack. I have never had a real issue with it in my 8+ years of using the application.

Alternatives Considered

Yammer and Confluence

Reasons for Choosing Slack

Microsoft's product did not even compare to the ease-of-use and clarity, brevity of implementation and start-up.... Slack is just way easier to use and more people I have worked with and currently with work still enjoy it/rely on it for day-to-day communication and project update needs. ESPECIALLY in a newly, mostly remote work environment!

Switched From

Yammer
Moriah
Overall rating
  • Industry: Wholesale
  • Company size: 51–200 Employees
  • Used Daily for 1+ year
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Likelihood to recommend 10.0 /10

We love Slack!

Reviewed on 11/12/2019

Our team easily adapted to Slack and it has become one of our favorite resources. Simple things that ended up being a hassle, like taking a poll of how many people will be traveling to a different office on a certain day or letting people know of updates, have become SO easy and used even more often. It helps keep everyone connected and in the know. I believe Slack has helped bring us to the next level in both business and relational.

Pros

Slack helped provide a collaborative workspace for our multiple offices. We were able to create channels to help teams have a space to store and share their ideas with one another. It also made passing out updates to certain groups of people or offices a lot easier/more efficient than through email. The Slack calls are also a great feature!

Cons

One of my few complaints would be that a lot of times I have to refresh the app in order to see updated statuses. There has been a lot of times I have been waiting for someone to get out of meeting or off of a call only to later realize they have been available for awhile and the app just wasn't showing the updated status.

Verified Reviewer
Overall rating
  • Industry: Computer Software
  • Company size: 1,001–5,000 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Ease of Use
  • Likelihood to recommend 8.0 /10

With great power comes great responsibility

Reviewed on 20/02/2020

great product with great capabilities but it there is no training on etiquette, its a collaboration wild west shoot out and a lot of people will run and duck for cover. Which means they will revert to old comms tools like email, text or actual face to face communication IRL (Heaven help us!)

Pros

Slack is an easy to use collaboration tool. I can have 1:1 discussions, create channels (public and private), share documents and images. We also leverage the integration capabilities to connect with other applications in our tech stack.

Cons

Slack enables people to digitally barf all over the place. There are those in our org who understand there are certain protocols, etiquette, do's and don't's. There are others who use the @channel or @here for every message and they are spamming numerous channels with their nonsense. And there are others who communicate completely with emojis and gifs. Maybe there are backend settings in Slack today that aren't being used by our site admins, but there really should be some proper training so we dont have to sift through so much noise to find relevant bits of communication.

Jason Taylor
Overall rating
  • Industry: E-Learning
  • Company size: 51–200 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Ease of Use
  • Likelihood to recommend 10.0 /10

Necessary for any Team that wants to Communicate

Reviewed on 05/04/2020

It's a very powerful tool that is the backbone of non-face-to-face communications. It's easier and less formal than emails so folks are more apt to just jump in and communicate (which is great). But with loose structure around it, folks are more apt to just spout nonsense in there. The chatroom style of organizing the communication can make it difficult to get past noise since it only takes a GIF or two to push the real communication out of visibility. It's like any communication tool there needs to be etiquette, organization, etc. Slack just happens to be one of those tools that is so powerful and flexible that it can make things very productive or very distracting.
In the end, with folks being remote, it is an incredibly handy tool (desktop app, browser, or mobile app) to keep folks in touch with each other.

Pros

I love that almost any service can send notification through Slack either directly or with an integration tool. Jira ticket creations get alerted in specific channels based on project/issue type for example. And Slack can be used to create polls, set reminders, etc. The sidebar organizes your channels (which can be public or private) as well as your DMs (which can be with 1 person or a group of people). The search function is neat, and channels/DMs can be searched/saved/archived/etc.

Cons

Ok, the downside can be astronomical- but it can be controlled with good administration. Slack can easily get out hand with multiple channels that confuse standard-authoritative messaging, and if the channels get too numerous then Slack monitoring can become a very distracting activity (so make rules on channel creation). Similarly, the flexibility of Slack can lead to a wide range of input from folks (GIFs, emoji-reactions, etc.).

Selcuk
Overall rating
  • Industry: Computer Software
  • Company size: 11–50 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Ease of Use
  • Likelihood to recommend 9.0 /10

Mostly reponses what a company needs but some improvement need in product

Reviewed on 22/12/2020

Overall it is fine. I enjoy the product. I would be happier with the features I mentioned above.

Pros

Useful, have a lot of features, making video calls, file sharing, adding bots etc. Product supported in variety of platforms, which is nice!
Macos, Windows, Linux, IOS, Android, and Web.

Cons

First of all, the product uses a lot of computer resources, which makes computer really slow. Especially having GIF emoji's in chat, even if the product in the background, uses a lot of CPU resource.
Second problem is about the video chatting. I started my job with an old Macbook, which is fine for most of the time. However, if I would want to make a video call/meeting with someone over slack, it is almost impossible to interact with my computer. I do remember myself asking the person that I'm talking, lets switch to Google Meet and continue from there, since I can't show what I need to show on my screen.
Third one also related to video chatting, drawing to someone else's screen is really good feature, I like it, but if the person you are drawing in their screen Zoomed in their Slack Messages, lines are not properly drawen in their screen. Slack dev team should calibrate that.
About getting calls, it rings all devices that you have logged in at the same time, which is annoying. there should be a feature, "Last/Mainly used device should ring first, if there is no answer, other devices can ring after 10 seconds or something." Because sometimes I even answer my call from my computer, but my personal computer still ringing, and the person who is calling me, also annoyed by that loud ring tone coming from my other computer.

Verified Reviewer
Overall rating
  • Industry: Computer Software
  • Company size: 51–200 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Ease of Use
  • Likelihood to recommend 9.0 /10

Working from home? Slack is a game changer.

Reviewed on 27/03/2020

I did not really pay attention to the quality of Slack before being forced to work from home in this highly distributed, asynchronous mode. When you have to cope with working from home (and kids schooling from home), this is a very nice upgrade to emails and other forms of online collaborative tools. It's a one-stop shop where you can also see the notification from Google Doc edits, and even respond from Slack. It saves me a lot of time.

Pros

I've been using Slack for over 5 years now, I liked it. But for the past 3 weeks, with the pandemic outburst, my organization switch to a full work-from-home environment, and Slack has been a game changer for our company. The thing I love with Slack is the integration of your whole work ecosystem within the app: you can attach your G-suite credentials, and Slack will send you reminders for your next meeting, with a direct link to the Google Hangout URL if your organization uses it. Now that we need to have all our standups and daily meeting in an on-line form, this feature has turned to be a real boost in my productivity. You can also see the status of your co-workers, if they're available or already in a meeting. And if they are, you can leave a message on Slack, they will respond when they can in an asynchronous way.

Cons

The learning curve is a bit steep as many shortcuts and integrations are not necessarily very intuitive to learn. Also, there is a risk of being overwhelmed with a multiplication of Slack channels you can subscribe to, and getting too many notifications that can become a distraction. But that's the flip side of having a central tool for all your online collaborative work.

Verified Reviewer
Overall rating
  • Industry: Internet
  • Company size: 51–200 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software

Slack is always on their game.

Reviewed on 31/01/2018

Pros

Uptime: There have been so few service interruptions in the last year. I can only remember one service interruption that has affected us where general functionality was unavailable for about 45 mins. Obviously 100% uptime is preferable with any software, but I'll accept 99.999%.

Fun: Slack feels fun to use and I'm not ashamed to say that otherwise boring conversations are elevated in their level of fun because of Slack use. Slack, for me, really evokes some of the early days of IRC, YIM/AIM use with the plethora of available emojis, shorthand, gifs, and so forth.

Flexibility: Need a new channel to discuss the latest project? It takes 20 seconds to create. Need to integrate with X service to fill Y business need? No problem. Need to set up a bot to help keep track of Z issues or to spin up a new QA database series? It can do that.

Navigation: Navigation takes about a week to learn, but becomes such a seamless part of your experience with Slack, especially with keyboard shortcuts. Channel hopping is easy, DM hopping is easy, thread creation is easy.

Cons

Cry Wolf Effect: The larger your organization, or the chattier your employees/co-workers, the less productive slack can become. Sometimes you really need to be in a channel because of its important messages, but if your teammates are blowing it up with cat gifs it becomes white noise. This sets up the "Cry Wolf Effect" whereby posting abuse means you are never sure if the channels that are important ever have anything important going on in them. So, unless you constantly check them it becomes fatiguing really quickly. Yes, one simple solution is to set up a dumpster channel for the white noise, but its really easy for that to leak into important business channels unless everyone agrees to a standardized code of posting behavior and rules.

Neil
Overall rating
  • Industry: Medical Practice
  • Company size: 2–10 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 10.0 /10

It's anything but Slack

Reviewed on 16/12/2019

We started using Slack in order to not have to talk to each other... Actually to be fare, we're spread across 4 floors and multiple offices (sometimes people work from home) so Slack gives us a way to communicate across multiple channels looping in relevant people that need to be updated on specific projects. The ability to be able to quickly jump onto a call or post images and video easily greatly enhance communication. Slack is open on all our computers (Mac and PC) all day every day and is key to getting things done! And you don't have to 'talk' to Dave at his desk anymore so no 20 minute conversations on the virtues of staples over paperclips, WIN!

Pros

It's so easy to set up an account, add your teammates, create your channels and assign/amend and remove access for who can see what. Also found loads if integrations with other software packages useful. I didn't much like the browser version but the desktop and mobile apps work a treat. Being able to set 'out of office' or 'end of day' do-not-disturb times really helps you to not get woken up in the middle of the night by Dave who had a brainwave on how to better stack the free peanuts in the break-room (we all have a Dave).

Cons

I initially had a bit of a blond moment (is it politically correct to say that? Gulp) when I first started using the web version of the app. I didn't really like it and it took me a while to figure out that there was in fact a desktop and mobile version that were much nicer to use (as mentioned in the Pros section).

Laura
Overall rating
  • Industry: Financial Services Software
  • Company size: 501–1,000 Employees
  • Used Daily for 2+ years
  • Review Source

Overall rating

  • Value for Money
  • Ease of Use
  • Customer Support Software
  • Likelihood to recommend 10.0 /10

Slack is the best for fast conversation with the perfect sound quality.

Reviewed on 19/08/2019

The audio and video calls quality is always perfect and awesome. It always provide the great options to share screen and important information, data and documents in a instant manner. Overall, Slack is the most intuitive and perfect for business meeting. Hence, this software provide the best video calling with the perfect sound quality. The another thing that I most like about this software is that we can easily chat with the audio and video calls in a more efficient way. This software is the best source of communication because here are chatting opportunity is always free and reliable. Through the Slack software, it is so easy to connect myself to anyone and at anytime in the world.

Pros

Slack software is very easy to use and cloud sharing is too amazing of this software. Slack software is great for the audio and the video calls. The most favorite thing about this software is that it has the superb features with the great ability. I can also share the important information with anyone in a more efficient way. The another benefit thing about this software that provide us is that it is the best for the fast conversation with our friends and colleagues. I would recommended this software because Slack software is highly productive with the lots of good tool and features. For us, it is the best communication and the great video calling software. It really helps me in a ll of my business meetings. Moreover, it always provide the great customer services for its users. We can always handle all of our conversation in a group video chat in a best manner.

Cons

The great disadvantage of this software is that sometimes with any internet connection, it makes our communication so difficult and harder. Moreover, there are some features that are missing in the Slack software. So it should must enhanced the quality of its features. The another problem that we faced is that sometimes we cannot fast conversation in a group video chat, because of some internet problems. For the new users, it is so difficult of us to use it more properly. Otherwise, it provide the great conversation for the audio and the video calls.