Based on 64 verified reviews published in the last 18 months
TrustRadius Community Insights are summaries of user sentiment data from TrustRadius reviews and, when relevant, HG Insights data.
Overview
Synthesised from 64 reviews | Last Published May 26, 2026
Slack functions as a primary internal communication platform, enabling seamless interaction and collaboration for teams, particularly in remote and distributed environments. In TrustRadius reviews, users leverage it for direct messages, group channels, and organizing discussions by topic. Its robust integration capabilities are a key strength, with 39% of reviewers highlighting their value for streamlining workflows and centralizing notifications.
While enhancing communication speed and efficiency, reviewers frequently note challenges with search functionality, with 19% citing difficulties finding older messages. Thread management can also be clunky, and notification systems are often overwhelming. Despite these points, the platform generally delivers a positive ROI by boosting productivity and reducing email clutter, though some raise concerns about subscription costs.
Pros
Seamless integration with other applications for centralized workflows
Effective audio and video communication via Huddles for real-time interaction
Structured organization of discussions through dedicated channels
Improved communication speed and overall efficiency
Significant reduction in internal email clutter
Cons
Challenges with search functionality for older messages and files
Difficulty with thread management leading to missed messages
Overwhelming and insufficiently configurable notification systems
Occasional audio problems and instability with Huddles
Concerns regarding subscription costs and license management
Other Services (except Public Administration)Consumer Services7Religious Institutions1Civic & Social Organization2Non-profit Organization Management8Fundraising1
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To communicate with the team and to keep track of project statuses through integrations with Trello and GitLab in project-specific channels. This helps keep everyone on the same page, at a glance. We also use a lot of direct messaging when various things come up. It's faster than email or in person and then we always have a record on hand to reference of what was discussed.
Pros
Trello and GitLab integrations and how they are displayed
Auto-responders via Slackbot are easy to set up
Cross-platform apps
Cons
Syncing on mobile is sometimes a bit slow
Likelihood to Recommend
Well suited to on the fly questions and project notifications from other systems. Also well suited to keeping a record of discussions and ensuring those who aren't available in the moment can still see everything in the channels so they keep apprised of project details/discussions. It's not really great for when you need to sit down and demo something and brainstorm, but it can be used to note a summary for everyone on the project with the results of brainstorming sessions.
My company uses Slack as tool for all employees. Every team has their own groups and they can talk about their needs. Not just development team.
Pros
Plug-ins with other apps such jira work really good
Videocalls work great
Cons
When you respond a colleague is hard to see the answer or is easy to forget to check answers. That thing could split one conversation into 3 different conversations. This is even harder when you are in a group.
Likelihood to Recommend
We can set up that if someone receive a message, ticket in jira could be created. Very easy to automate things. There are lots of plug-ins with other tools. That is one of the best uses.
The worst thing, in my opinion, responses during conversations. Is very easy to forget or skip answers from colleagues
VU
Verified User
Administrator in Information Technology (201-500 employees)
Slack is a great tool for team collaboration. For our fully remote team, I can't imagine working without this app. Daily communication, daily meetings, and in-app notifications from other external services are essential for us to keep up to date with tasks and progress in various projects.
Pros
chat
integration with external services
web calls
Cons
small issues with notifications in desktop app
Likelihood to Recommend
For hybrid and remote teams, Slack is a great tool. For an office team, Slack may be “too much” and can overload team communication.
Slack is an incredibly visually pleasing and fast/easy way to communicate to large groups, single individuals or smaller subgroups of people. I love the functionality of giphy's where you can clear express what you are trying to say, and the huddle functionality has gotten better over time. I've been using Slack for the last 6 years and I'm always sad if I change company's and the platform of communication changes from Slack to a different platform.
Pros
Visually pleasing
Extensive ability to communicate through giphy's, emoji's, formatting of information
up time is very consistent
Cons
I would love to see Slack adding in more quick commands
putting together training for how to use these quick commands
Likelihood to Recommend
Slack is fun to use when you're trying to get quick answers, quick responses. Like with any other chat platform, if you have more complex ideas to try to explain, sometimes it is not as clear and desirable, but that just has to do with what you're trying to accomplish. For connection and team building, it is incredible.
VU
Verified User
Consultant in Product Management (5001-10,000 employees)
My product is an announcement app for Product Updates & Software Updates. Users can create their own widgets and changelog to publish posts and announcements. We also have a feature request, roadmap and NPS tool.
We use our product to align with different departments, create technical support tickets, and work on them with our technical team via using Threads, and integrated Slack with many different applications to streamline our product design process.
Pros
Direct Communication
Creating threads to align with different products
Integration with other applications with helps with organization and planning
Cons
Using Canvas in channels can be improved and highligted.
Wish we could add message templates. For example, when creating a bug report, I always have to rewrite the template (or copy it from a notepad)
Likelihood to Recommend
Slack is well suited for small teams and startup companies. I think using it for very large teams could get complicated due to Slack's simplicity in my opinion.
My whole team uses Slack to communicate with each other, we have different channels where we find out about new company news, we also have private groups for different business areas. It is very useful, we can also link other applications, this makes it easier for us to remember meetings, presentations, among other things
Pros
Notifications for my meetings and chats
Have conversations easy to find
notify my team when i'm sick or busy or in PTO with a emoji in my profile
Cons
Delete or leave a conversations with multiple people
have a more personalized profile
have the option to automate some channels so that they open themselves
Likelihood to Recommend
When you want to ask a question or comment to someone at work but you want it to be immediate without having to send an email but you don't want it to be so inappropriate to send it by whatsapp, Slack is the option. But when you talk with a client and you want to have evidence I think is better an email
VU
Verified User
Analyst in Professional Services (1001-5000 employees)
We use Slack to connect with the clients and get the issues resolved faster than the emails. We use this for quick messages and discussion for updates and issues/problems faced by the team.
Pros
We can record the audio and presentation
We can share files as attachments and see within each message thread
Cons
It would be great if Slack can accommodate more than 2 people for free video meeting.
Need a button above the chat box which will lead to the bottom/most recent chat when we get a ton of messages or when we are at the top and want to see the most recent messages.
A WhatsApp feature which gives us an option to see who all have seen the sent messages in group/channel would be amazing
Likelihood to Recommend
Slack helps communication fast, easy and secure. We could organize a quick connect and make everyone clear about the new updates and changes we should follow.
Slack is the main communication medium of all the organizations where every employee can contact any support or superior to resolve their issues. we share good information and work techniques with our colleagues and it's working worldwide. it is the best way to contact each other and discuss work-related matters. it is an easy life. the best software around the word.
Pros
in one moment we can deliver the message to the unlimited employees
quick and fast responses
very easy to use like web chatting
Likelihood to Recommend
It is Amazing software and suited to all kinds of businesses where employees interactions are needed. sales and marketing business is incomplete without Slack. it connects each employee to the management and creat bonding. it is safe and secure as all the conversations got recorded for investigation purposes. so no one can misuse it. it is better than a phone call because you can print it as well
Being honest, we are not on Slack now. We left it a few months back and now our whole organisation uses Workplace. But when we were using Slack for our organisation, we used it for internal communication and live chat in various departments and to share project updates or documents which needed to be shared quickly. It is still very easy to use but doesn't fully meet all of our requirements.
Pros
It has a nice UI and is easy to set up and use. New team members could easily get updated from a particular channel as well.
It has both mobile and web-based versions available allowing us to use it on the go.
It is free for most of the cases and allowed us to create different channels or groups for different departments, teams or projects.
It offers easy integrations with most used services like Google Drive, GitHub etc.
Cons
Its paid plan is very expensive for startups and businesses having low revenue/big teams.
For large organisations too, it creates chaos because large numbers of users generate large data. Slack does not support much management of this.
Sometimes it looks like we are using a messaging app instead of a professional service, as it has all the features of instant messaging apps, like emojis, etc. Professionally sometimes, these don't seem to be useful.
Likelihood to Recommend
Slack is very well suited if you have employees situated at different places or offices, especially if some employees have to go out for field work. It's very easy to update the task or work done remotely using Slack's mobile app. Slack doesn't seems to be useful in cases of full professional needs, as it lags in many ways in comparison to its competitors.
Slack is not used very centrally in our organization, unfortunately. Though we also have Microsoft Teams, the Slack offering is better at this time. Collaboration across teams is easier with Slack. Though I think Teams will catch up.
Pros
Collaboration within and between teams.
Many channels for very specific topics with experts in it.
Cons
A small learning curve to get the most of the product.
No other real negatives I can think of.
Likelihood to Recommend
For a personal viewpoint, I use Slack in two ways: first I participate in channels that are very specific for a product or sometimes even a feature. There are experts on those channels that can help with many questions. Second, our team uses Slack to communicate on topics. The real benefit for me personally is the first use.
VU
Verified User
Professional in Information Technology (1001-5000 employees)
