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Compare allApp info
- Installs
- 100+
- Category
- Productivity
- Content rating
- Everyone
- Version
- 2.65
- Released
- Jul 21, 2026
- Last updated
- 2 Oct 2026
- In-app purchases
- No
- Contains ads
- No
- Promo video
- No
- Requires Android
- 10
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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.
Independent Calendar with the ability to link events to contacts and see history
Take your Time & Chaos or Chaos Intellect calendar with you — Chaos Calendar brings your Windows PC appointment calendar to Android, keeping everything in sync across your devices. 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. LINK EVENTS TO CONTACTS While there are many calendar apps to choose from, one powerful unique feature, which this app is used in combination with Chaos Contacts, is the ability to link appointments to contacts. This way you can later view a list of the appointment history of events linked with this contact. MORE 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.