# Tella (open-source security app)

> Tella is a free, open-source security app for Android. Encrypt and hide files on your device. It has 113 GitHub stars and is released under the Apache-2.0 license, and you can install it from F-Droid and Google Play.

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.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/Horizontal-org/Tella-Android |
| Platforms | Android |
| Built with | Kotlin |
| GitHub stars | 113 |
| License | Apache-2.0 (open source) |
| F-Droid | https://f-droid.org/packages/org.hzontal.tellaFOSS/ (package org.hzontal.tellaFOSS) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=org.hzontal.tella |
| App Store | not linked |
| Website | https://tella-app.org |
| Official | no |
| Category | Password managers & security |
| Latest release | v3.4.0(258) (Oct 7, 2026) |
| Last commit | Oct 6, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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