Slack vs Microsoft Teams - Uptime & Outage Comparison
Compare uptime, outage statistics, and incident history between Slack and Microsoft Teams. See which service has better reliability.
Note: Each service has different practices when updating its status page. One service may report more incidents due to transparency, not necessarily worse reliability. Compare these stats with context.
Slack
Status monitoring since April 2020
Minor Outage
Slack Incident Statistics
1
Last 7 days
3
Last 30 days
9
Last 90 days
Recent Slack Incidents
Ongoing
about 16 hours ago
Slack for iOS closing unexpectedly when opening channels
Users may experience iOS closing unexpectedly when opening channels. We're actively looking in to this, and we'll sh...
Resolved
9 days ago
Free Plan Customers Are Experiencing Message Failures
We're aware that some customers on our free plan are experiencing message-sending limit blocks in an unusual spike pa...
Resolved
28 days ago
Some customers experiencing blurry image previews and download issues
We're aware there's an issue where a subset of customers are experiencing blurry images which can't be downloaded, th...
Microsoft Teams
Status monitoring since September 2025
Operational
Microsoft Teams Incident Statistics
0
Last 7 days
0
Last 30 days
2
Last 90 days
Recent Microsoft Teams Incidents
Resolved
2 months ago
Users may be unable to send messages after a recipient of a new chat accepts ...
Resolved
4 months ago
Users may be unable to access or sign in to Microsoft Teams Free on iOS devices
We've determined that this issue is due to a recent change that included a reference to a deprecated authentication c...
Resolved
5 months ago
Some users are unable to search, chat or call users in Microsoft Teams Free
We're monitoring our fix deployment to ensure it has saturated throughout the entire affected environment before vali...
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