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choose better software

What Is Slack?

Meet your Digital HQ for Sales
Work flows and revenue grows with a Digital HQ for Sales. Using the combined power of Slack and Salesforce, bring your reps together with their data, processes and customers for faster revenue growth and deeper relationships.

Who Uses Slack?

Our customers range from two-person startups to Fortune 100 corporations. In fact, 77% of the Fortune 100 uses Slack.

Slack Software - Slack channels
Slack Software - Slack search tools
Slack Software - Slack task creations
Slack Software - Slack video/audio calls
Slack Software - Slack mobile application

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Reviews of Slack

Average score

Overall
4.7
Ease of Use
4.6
Customer Service
4.4
Features
4.6
Value for Money
4.5

Reviews by company size (employees)

  • <50
  • 51-200
  • 201-1,000
  • >1,001
Sonia
Sonia
Digital Marketing Head in India
Verified LinkedIn User
Marketing & Advertising, 2–10 Employees
Used the Software for: 6-12 months
Reviewer Source

Best Tool For your Team Interactions

4.0 4 months ago

Pros:

We can Pin the important tasks, information, can go in huddle directly and ease of use

Cons:

Sometimes the voice in huddle is not clear

Anonymous reviewer
Information Technology & Services, 51–200 Employees
Used the Software for: 2+ years
Reviewer Source

Alternatives Considered:

The default tool for tech companies for a reason

5.0 3 weeks ago New

Pros:

It's now the default for most tech companies. User experience is smoother than all similar tools.

Cons:

The search function doesn't quite live up to expectations. Exacerbates bad communication practices.

Michelle
Business Intelligence Director in US
Medical Practice, 51–200 Employees
Used the Software for: 6-12 months
Reviewer Source

Slack Review

2.0 3 weeks ago New

Comments: It’s very basic communication. It’s good for a small team 10 people or less but not good for small business. Compare to Microsoft Teams, Slack has a lot to catch up in terms of versatility.

Pros:

It has a free version that everyone can use.

Cons:

The search function is not good. Files uploaded or shared cannot be searched.

Stefanie
Director of Project Operations in US
Information Technology & Services, 2–10 Employees
Used the Software for: 6-12 months
Reviewer Source

Great tool that allows us to practice what we preach when working with our clients

4.0 3 months ago

Comments: My company is small and started using it this year. The rollout has been smooth in some cases and bumpy in others. The biggest problem I run into is other users not knowing how to use it. However, as we train each other and our clients, it gets a bit easier everyday and is incredibly.

Pros:

There are many things i like about it! -How many apps it integrates with -That I can manage projects both internally and externally and communicate freely -All of the templates are helpful and good quality - many of them are perfect right out of the gate -That you can communicate via threads so the main message board remains clean and not bogged down with a ton of back and forth -That you can choose which parts of threads you want to post to the comment board if needed. -The ability to create workflows

Cons:

There are a couple of things I don't like: -With workflows, you can't create conditional steps. For example, if I want to create a form where the questions change based on the answer to the prior question, you aren't able to do so. You essentially have to make additional workflows/forms for each. -It gets a bit messy, even if you're great at setting up notifications, channels, communicating through it etc., it can get out of control quickly. Plus, you also have to rely on other people's knowledge on how to use the tool. If someone you're communicating with doesn't know Slack well, you can't be sure if they'll understand how to check for message, have proper notifications etc.

David
Technical Account Manager in US
Internet, 5,001–10,000 Employees
Used the Software for: 2+ years
Reviewer Source

Yay for Slack

5.0 last month New

Comments: I use it everyday all day and it is wonderful....it meets all of my needs.

Pros:

User Friendly, very easy to understand and has alot of integrability with other software.

Cons:

I use the web version as i feel the desktop version is clunky and not as fast

Maryna
Customer Support Representative in US
Warehousing, 51–200 Employees
Used the Software for: 6-12 months
Reviewer Source

Great software for communicating.

5.0 2 months ago New

Comments: I used it on an everyday basis, and it was great. The messages come through right away and I never missed a message while at work.

Pros:

It is very easy to use, the set up is very intutive. You can have multiple chats and it is easy to see which chat has new messages.

Cons:

I honestly don't have any. I loved using Slack for team communication.

Christian
Owner and consultant in US
Marketing & Advertising, Self Employed
Used the Software for: 2+ years
Reviewer Source

Easy communication for anyone anywhere

5.0 2 months ago New

Comments: Slack is the best communication tool that I use, and I haven't thought about moving away from it.

Pros:

Slack is a super easy platform to communicate on, whether with family, friends, coworkers, and professional communities. I use Slack every day for all of the above, and it keeps me connected whether at my desk or on the go.

Cons:

Some of the best features are behind a paywall, like keeping messages after 90 days.

Pawel
Head of Retail in UK
Retail, 11–50 Employees
Used the Software for: 1+ year
Reviewer Source

Great communication app

5.0 last month New

Comments: Overall love the app and use it every day to share and communicate with colleagues.

Pros:

Easy to communicate and to share files and attachments. Love the channels and the segmented stories

Cons:

Still missing some features and the full version isn't cheap

Vasilis
Web Developer in Greece
Information Technology & Services, Self Employed
Used the Software for: 2+ years
Reviewer Source

One of the best chat applications for small or big teams.

5.0 4 weeks ago New

Comments: Overall I had a great experience. Although, a few times I had some issues with the notifications on Android. I was receiving messages but the notifications were missing.

Pros:

It's a great chat application for teams. What I like the most is the ability to create channels for different topics.

Cons:

I tried to use the Slack API to create some automated personal notifications but I found it a little bit difficult to setup.

Greg
CEO in US
Health, Wellness & Fitness, 2–10 Employees
Used the Software for: 1+ year
Reviewer Source
Source: SoftwareAdvice

Alternatives Considered:

Great communication

5.0 last month New

Comments: Great system, sometimes it gets confusing to go back and forth from one org to another.

Pros:

Complete communications/organization system

Cons:

Hard to understand all features, but there seem to be more if you keep looking.

Sooyeon
Technical support engineer in Japan
Automotive, 10,000+ Employees
Used the Software for: 1+ year
Reviewer Source

It is more than satisfactory as a communication tool.

5.0 3 months ago

Comments: As a communication tool, the overall quality is excellent, with no need to worry about bugs. It offers various features, and it’s up to you how to make use of them. By integrating with desired apps, we could automate certain tasks within Slack. For large organizations, Slack alone can serve as an assistant, making it an excellent tool for time management.

Pros:

I liked that members who joined a channel could freely invite other members.

Cons:

I found it challenging to understand the Connect feature because the rules seemed unclear when it involved admins.

Devin
Manager, IT Systems in US
Computer Software, 201–500 Employees
Used the Software for: 2+ years
Reviewer Source

Alternatives Considered:

Great platform with room to grow

5.0 3 months ago

Comments: Overall, it is a great messaging platform, far above the competition. Could definitely improve on some things, but great nontheless.

Pros:

User experience, connecting with other companies via Slack Connect. Also Huddles are a great feature.

Cons:

Automation is a bit tricky. Managing User Groups and default channels have been a pain point as well.

Heather
Technical Learning Partner in UK
Computer Software, 201–500 Employees
Used the Software for: 2+ years
Reviewer Source

It doesnt get better than Slack

5.0 3 months ago

Comments: I love it - it works so well for me and is a great way to communicate with my colleagues. I love all of the features and am constantly amazed with all the things it can do - automation is definitely a huge drawcard for me!

Pros:

I love everything about slack. I have had to use other messaging services in the past and slack has everything you need and more - emojis, gifs, workflow automations, channels, groups. It is fabulous

Cons:

Honestly - nothing big comes to mind. I love using Slack. I have noticed a bug recently were messages on my phone are quite delayed compared to my desktop app but this is very minor

Jaime
Managing Director in US
Hospitality, 11–50 Employees
Used the Software for: 2+ years
Reviewer Source

Slack for the everyday user

5.0 3 months ago

Comments: Slack is wonderful—it’s never a question of its usefulness. It gives our team the opportunity to grow, connect, and collaborate effortlessly. Slack is easy to train on and lets you show off your personality. It also has many hacks and tricks that most people don’t know about, like setting reminders, sharing a GIF instantly, and mentioning individuals, only those online, or an entire channel. It’s a smart system that I love using.

Pros:

The ease of communication between teams, colleagues, and even adding a second or third company is so easy. I also love how easy it is to start a 'video call' huddle with anyone in your organization. With one click, you’re chatting over video, sharing your screen, and connecting with someone on the other side of the world. It also integrates very well with Zapier, Google, Asana, Calendly and many more.

Cons:

I'm not sure if this is a Slack issue or a user issue. I’m an Apple product fanatic; however, when my Slack is buzzing with notifications from all the workflows and channels I’m in, my phone, laptop, and watch all go off simultaneously, which can be overstimulating. Although I’ve turned off notifications on my watch (for my sanity), there are times I wish only certain channels would communicate to it.

Aleksandra
Data and research lead in Mexico
Outsourcing/Offshoring, 11–50 Employees
Used the Software for: 2+ years
Reviewer Source

Cool way to work and chat.

5.0 2 months ago

Comments: My experience with Slack has been really positive. It’s incredibly user-friendly, with all the tools for both quick, casual chats and more structured team collaboration. I love how easy it is to send files like spreadsheets and data right in the chat, so we don’t have to jump between different platforms. The fun features, like GIFs, stickers, and video clips, add a nice touch of personality, making remote work feel more connected and personal.

Pros:

I love how Slack makes our virtual office feel more alive! It's easy to use, and I’m all about the fun features like stickers and videos that let me add some personality. Plus, I can send all kinds of work stuff—like sheets and data—which is super useful. It definitely makes work chats feel more efficient and way more enjoyable!

Cons:

I honestly can’t think of anything I dislike about Slack.

Anthony
Children and Youth Missionary in Australia
Religious Institutions, 201–500 Employees
Used the Software for: 2+ years
Reviewer Source

A.Onyiba Slack Filled Insight (Experience Based on 7+ Years)

5.0 2 months ago New

Comments: Business instant messaging, live chat and video conferencing are among the benefits which I gain from Slack.

Pros:

Slack is used across all business units in my organization. I like that it makes it super easy to share large files online, conduct corporate meetings, send and receive DMs from one single spot.

Cons:

I crown 👑 the vendor since they keep updating Slack to meet our needs so we may never lag behind - it is flawless at the moment.

Filippo
Support Specialist in Canada
Computer & Network Security, 5,001–10,000 Employees
Used the Software for: 2+ years
Reviewer Source

A fundamental tool for collaboration within the workplace

5.0 4 months ago

Comments: Slack is the main tool in my role. In a fully remote position, the entire workday happens on slack, which is a reliable tool to manage conversation within a team, and across different teams. The integration with external tools (eg Knowledge Management tool) that allows to surface them within the Slack interface facilitates conversations since it allows to stay within the tool.

Pros:

- Integration with other tools - Conversation management (threading, scheduling) - emoji customization to match company culture

Cons:

- difficult to manage multiple threads without popping them out

Dilak
Senior Experience Designer in Australia
Design, 51–200 Employees
Used the Software for: 2+ years
Reviewer Source

Most Influential BIM in Australia 🇦🇺

5.0 4 months ago

Comments: Business instant messaging, live chat and video conferencing.

Pros:

Slack now has video conferencing capability which allows me to conduct online meetings without integrating with external applications.

Cons:

Slack has all the capabilities that I yearn for without facing complications.

Facundo
Remote Interpreter in Argentina
Telecommunications, 1,001–5,000 Employees
Used the Software for: 1+ year
Reviewer Source

Slack as an excellent work team manager

5.0 last month New

Comments: My overall experience with Slack was very good and I would recommend using it. Having had the chance to use both the free version and the paid version, I think that by making the small changes regarding the access to the history of old messages it would be the definitive platform for companies and team management. On the other hand, with full access through payment, you have full control of everything and no complaints at all.

Pros:

For me, the best thing about Slack is the possibility of highlighting important messages, being able to make notifications such as wake-up calls and being able to gather important files for a work team within the same chat as a team. In addition to this, as an employee I appreciate the possibility of rotating between the status of “available, absent and unavailable” even while inside the platform.

Cons:

The worst of Slack or rather its areas of improvement are in the limitations of the free experience, such as the search for files and messages that have limitations to be no more than 6 months old (I think there should not be limitations on the search for messages but perhaps keep it in the archives unless they are super important files marked by the team leader as indispensable).

Ibrahim
Grants Writer in UK
Nonprofit Organization Management, 201–500 Employees
Used the Software for: 2+ years
Reviewer Source

Slack: Unified Communication and Business Instant Messenger of this Era ✏️

5.0 5 months ago

Comments: Business instant messaging over the internet improves productivity which leads to high ROI.

Pros:

Slack facilitates an extensive range of features in one place which eradicate need for external apps integration. BIM, live chat, video conferencing and file sharing are among the best features available on Slack.

Cons:

I have used Slack for more than 8 years now and I like the way the vendor keeps implementing new features.

Victor James
CEO in Australia
Marketing & Advertising, Self Employed
Used the Software for: 2+ years
Reviewer Source

Why I Prefer Slack for Large File Sharing and BIM

5.0 4 months ago

Pros:

With Slack, I am able to send and receive direct messages over the internet. Sending large files online is another added advantage.

Cons:

I have zero issues attached to Slack at the moment since it meets all my needs.

Ron
VP Software Development in Canada
Marketing & Advertising, 51–200 Employees
Used the Software for: 2+ years
Reviewer Source

Slack is a must have for your development team

5.0 3 months ago

Comments: My favorite instant messaging tool for the workplace, especially since I am on a development team. The integrations also create a single place to get updates on all of the work going on.

Pros:

Easy to use, lots of plug ins and integrations. Developers love this app and it allows you to create channels as well as small adhoc groups to keep people up to date and have quick conversations. Huddles are also very convenient for a quick oral conversation. We have integrated it with Atlassian to keep people up to date on tickets and changes in status. We also have channels with external partners to make communication with them even easier.

Cons:

Sometime the number of channels and direct messages you have available at any time can be overwhelming. You can remove yourself from channels and delete direct messages but often there are a lot that you want to keep up with.

Leticia
Customer Experience and Operations Manager in UK
Retail, 501–1,000 Employees
Used the Software for: 2+ years
Reviewer Source

What’s Slack? Opinion Based on my Experience

5.0 5 months ago

Pros:

Availability of video conferencing capability which wasn’t there when I first implemented Slack is what amuses me currently.

Cons:

There has be no drawbacks on Slack for over two years now. The vendor keeps improving and updating this tool everyday.

Samuel
General Manager and Head of Operations in UK
Leisure, Travel & Tourism, 11–50 Employees
Used the Software for: 2+ years
Reviewer Source

Fantabulous Tool for Instant Messaging and Team Collab

5.0 5 months ago

Comments: Team collaboration, file sharing and video conferencing.

Pros:

Availability of iOS mobile application is what I like most since I am able to conference, send and receive messages from anywhere over the internet.

Cons:

I do not encounter any overwhelming aspect when using Slack.

Phillip
Consultant in US
Information Technology & Services, 201–500 Employees
Used the Software for: 2+ years
Reviewer Source

Slack is the Most Robust BIM Program

5.0 7 months ago

Comments: It is easy to coordinate on projects via communication channels with Slack.

Pros:

The new feature (video conferencing) is the best tool so far since it enables me to schedule and join online corporate meetings.

Cons:

I can’t complain since Slack suits all my daily needs at workplace.