Yes, the MeisterTask mobile app (Android app and iOS app) supports offline mode with some limitations.

What Can I Do Offline?

• You can make changes to your tasks while offline. These changes include edits such as updating task descriptions, checking off tasks, adding comments, and more.
• The app can store up to 100 changes locally on your device.

What Happens After 100 Changes?

• Once the 100-change limit is reached, the app will require an internet connection to sync your changes to the server.