Slack is an application that helps teams communicate and work together by combining messaging, file sharing, and app integrations in one place. It makes it easy for teams to stay connected and work efficiently, whether they are in the office or working remotely.
The community submitted 913 reviews to tell
us what they like about Slack, what Slack can do better, and
more.
4.8
Based on 913 reviews
Review Slack?
Reviewers largely see Slack as the default hub for fast team coordination: channels and threads keep work organized, search is strong, and integrations, file sharing, huddles, reminders, and automation help teams move without leaning on email. Users especially like it for remote, startup, and engineering workflows. The main complaint is noise: too many channels, pings, and buried threads can make it feel cluttered or hard to navigate, especially across multiple workspaces. Some also mention limits or cost on free and paid plans, plus occasional performance or video issues.
As a startup, we move fast and break things. Slack is where the pieces get put back together. It’s more than just chat. Thanks for keeping our chaotic startup energy organized and actionable. We’re building better because we communicate better.
workflow automation (10)file sharing (20)channel organization (54)remote team collaboration (94)
Slack remains one of the golden standards for remote team collaboration; my favorite part of the tool is the integrations it carries natively. Channels also help a lot for teams that wear many hats.
What needs improvement
mobile app performance (10)free version limitations (7)notification fatigue (25)video call quality (2)
Free version limits remain a blocker. However, many competitor tools have also lowered their free version limits so not the biggest flaw. I do think the mobile version can be further improved though!
I still use the other products but vary a lot of the situation. Lark is more of a super app that also includes gmeet/zoom and notion - used a lot more in Chinese companies. Teams is still heavily used in consulting / f500 companies. Discord is used more for gaming / community management for crypto and ai startups. Webex and Mattermost are more niches now.
I chose Slack because it’s where most teams already run their day-to-day work. It has a strong thread-based workflow, great notifications, and makes it effortless to reply quickly without introducing another support dashboard.
user-friendly interface (30)remote team collaboration (94)
Slack has been a solid tool for keeping team communication in one place. I really like how easy it is to follow conversations through channels, especially for day-to-day coordination. Best tools for teams especially startups.
What needs improvement
free version limitations (7)
Over time, channels and notifications can get out of hand if you’re not careful. The free plan also starts to feel limiting as the team grows, which is a bit disappointing.