Chaos Calendar
Productivity
Independent Calendar with sync for Chaos Intellect or Time and Chaos users
- Downloads
- 144+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Oct 2
- 2026 · v2.65
Screenshots
About Chaos Calendar
YOUR CALENDAR, YOUR PRIVACY
Chaos Calendar maintains an independent calendar database, completely separate from any other appointments or calendar program you have. Your event schedule stays private and is never shared with other apps without your permission.
FEATURES
• View your schedule anyway you like:
daily, weekly timeline, monthly calendar, or ongoing list
• Set an alarm on any event for a reminder before it starts
• Send or accept appointments via sharing
• Filter appointments listed using groups to stay focused on what matters
• Sync with Time & Chaos 10 or Chaos Intellect 10 on Windows through ChaosHost
REQUIREMENTS
Requires a ChaosHost account for cross-platform sync.
SUPPORT
Our tech support team is ready to help. If you run into any trouble, please reach out to us before posting a review — we'd love the chance to make it right.
What’s new
Version 2.65 · Updated October 2, 2026
We've improved the notifications you get when there is an alarm set on an appointment, so you can see more details about when and where without needing to open the app. We've also made some improvements to the search screen so it will wait for you to pause typing before starting its search. Finally, we've made an update for widget users so even automatic background syncs with ChaosHost update the widget with upcoming events.
User reviews
My most-used program over 24 years
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