OpenScan scans documents on Android with an emphasis on privacy, and its project page includes build instructions.
Open source
24 alternativesTasks
Tasks.org offers open-source Android to-do lists and reminders with support for services such as Google Tasks, CalDAV, and EteSync.
About Tasks
Tasks is an open-source to-do list and reminder app for Android. It offers lists, tags, filters, manual sorting and infinite-depth subtasks, with options to customize appearance and language. It can be used offline or synced with Tasks.org, Google Tasks, DAVx⁵, CalDAV, EteSync, or DecSync CC, and is described as compatible with Outlook, Thunderbird, and Apple Reminders.
Key features
- To-do lists and reminders for Android
- Lists, tags, filters, and manual sorting
- Infinite-depth subtasks
- Sync with Tasks.org, Google Tasks, DAVx⁵, CalDAV, EteSync, DecSync CC
- Offline use with self-hosting option
- End-to-end encryption when used with EteSync
Best for: Android users who want an open-source task manager that syncs with open protocols and third-party services.
Good for
- Open-source software licensed under GNU GPLv3
- Works offline and supports self-hosting
- No ads according to the homepage
Tasks at a glance
- Website
- tasks.org
- Category
- Mobile Apps › Android Productivity Apps
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Android, Web
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Tasks FAQ
What services can Tasks synchronize with?
Tasks.org, Google Tasks, DAVx⁵, CalDAV, EteSync, and DecSync CC.
Is Tasks open source?
Yes, it is free software licensed under GNU GPLv3.
Can Tasks be used offline?
Yes, it can be used offline, self-hosted, or with EteSync for end-to-end encryption.
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