TL;DR - Slack
- Team communication organized by channels
- Integrates with 2,400+ apps you already use
- Searchable history finds any past conversation
Pricing: Free plan available
Best for: Growing teams
Score: 93/100
Pricing Plans
free trialFree
Free
Small teams
- 90-day history
- 10 integrations
- 1:1 calls
Most Popular
Pro
$8.75/user/month
Annual
- Unlimited history
- Unlimited integrations
- Group calls
Business+
$15/user/month
Annual
- SAML SSO
- Compliance
- Priority support
About Slack
Slack revolutionized how teams communicate. The messaging platform that made work chat standard—where modern work happens.
The adoption is massive. The integrations are endless. The experience defined a category.
Teams use Slack because it's where everyone already is.
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Slack FAQ
Yep! The free plan is pretty usable - you get 90 days of message history and 10 app integrations. The big catch is losing older messages after 90 days, which can be frustrating. Paid plans ($8.75/user/month) remove that limit and unlock group video calls.
Pro is $8.75/user/month with unlimited history and group calls. Business+ at $15/user/month adds compliance features and SSO - important for regulated industries. Enterprise Grid is priced per org for large companies. Annual billing knocks off about 15%.
Over 2,600 apps - basically everything. Google Workspace, Salesforce, Jira, GitHub, Notion, Zoom... you name it. The API is also excellent, which is why so many companies build Slack-first integrations. That app ecosystem is honestly one of Slack's biggest strengths.
Yes! They're called Huddles and they're great for quick conversations. Just click and you're in a call - way faster than scheduling a Zoom. Free users can do 1:1 calls; paid plans get group calls up to 50 people with screen sharing.
The mobile apps are solid - iOS and Android both work well. You can do pretty much everything: messages, calls, manage notifications. The experience isn't quite as nice as desktop, but it does the job when you're away from your computer.
Enterprise Grid is built for this - SAML SSO, data loss prevention, eDiscovery, HIPAA compliance, even FedRAMP authorization. It's why you see banks and healthcare companies using Slack. Not cheap, but the security features are comprehensive.
It depends on your company. Slack has a better user experience and way more integrations. Teams is basically free if you already pay for Microsoft 365, which is hard to beat. Startups and tech companies usually prefer Slack; Microsoft shops gravitate to Teams.