Productivity · Open source
Tella
Encrypt and hide files on your device
Opens the official F-Droid page
About Tella
In challenging environments with limited or no internet connectivity or in the face of repression Tella makes it easier and safer to document events, whether that’s violence, human rights violations, corruption, or electoral fraud.
ENCRYPTION: All of the content and data stored in Tella are encrypted. This means that unless the app is unlocked, all the data within Tella will remain inaccessible.
FILE MANAGEMENT: Take photos, videos, or audio recordings directly in Tella, or import documents from your phone, and easily organize your files in folders.
CAMOUFLAGE: Change the app icon and name to a seemingly harmless one, such as a calculator or a camera.
QUICK DELETE: In just a few seconds, delete all the sensitive data and files stored in Tella.
DATA-COLLECTION: Groups and organizations can collect data through forms and surveys, and received the data directly on their server.
How to install Tella
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open Tella from your app drawer.





