Tuisku is a free, open-source Android Writing app. The latest version is 1.2.0, it is 5.5 MB, requires Android 9.0+, and is published by Omar.
- Size
- 5.5 MB
- Requires
- Android 9.0+
- Last updated
- 29 days ago25 Aug 2026
- Safety
- Scanned25 Aug 2026what does this mean?
License: GPL-3.0-only
About this app
Tuisku is a simple and lightweight notes app that encrypts your notes with the ChaCha20 algorithm stored internally, you can share these notes unencrypted (if you wanted to) using the share button ontop of the note editor. You can also disable screenshoting in Settings and view your encryption key there.
Screenshots
Permissions1 requested
What version 1.2.0 is allowed to do once installed. Highlighted entries reach outside the app’s own sandbox and are worth a second look. Not sure what a permission actually means? Learn how to evaluate app permissions.
Dynamic Receiver Not Exported Permission
No description available for this permission.
com.omaawr.tuisku.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Version history1 published build
- v1.2.0Latestbuild 17Scanned
- Released
- 25 Aug 2026
- Size
- 5.5 MB
- Requires
- Android 9.0+
Changelogs: - CRITICAL: Fix security flaw involving nonce being used twice, please update Tuisku (if you can) if you want to keep your notes secure.
Download v1.2.01 permission
Dynamic Receiver Not Exported Permission
No description available for this permission.
com.omaawr.tuisku.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
New to sideloading? Read the install guide before opening an APK. Not sure this build supports your phone? See how to check your device’s Android version.
Read our guide to the best open-source Writing apps for Android
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