Tella

Verified safeOpen sourceExclusive
No reviews reviews
19
downloads
5.0
android

AI summary

Encrypted vault for documenting human rights violations in high-risk environments. Hides itself behind a changed name and icon, encrypts photos, videos, and audio in a separate gallery, captures verification metadata, and supports server data collection without third-party dependencies.

Generated by AI. May contain inaccuracies.

About this app

In challenging environments, with limited or no internet connectivity or in the face of repression, Tella is an app that makes it easier and safer to document human rights violations and collect data. Tella is available on Android and iOS.

Tella:

- encrypts photos, videos, documents and audio files in a separate gallery so they cannot be accessed from the phone's regular gallery or file explorer. - hides itself by changing its name and icon in the list of apps. - captures metadata when taking photos, videos, and audio recordings to verify the origin of the files. - allows users to quickly delete all files in Tella's encrypted gallery. - enables users working with a group or organization to collect and send data to a server without relying on third-party apps or servers.

You can watch a short video demonstrating Tella's main features here: https://www.youtube.com/watch?v=aJIyWESxM_o&t=1s

Why Tella?

Tella's goal is to protect at-risk individuals and groups--advocates, journalists, human rights defenders--from repressive surveillance, whether physical or digital. Tella aims to provide a highly usable solution, accessible to all with minimal or no training, to collect, safeguard, and communicate sensitive information in highly repressive environments.

Tella has three main objectives:

- Protecting users who engage in documentation from physical and digital repression - Protecting the data they collect from censorship, tampering, interception, and destruction - Empowering individuals and groups to easily, quickly, and effectively collect data and produce high quality documentation that can be used for research, advocacy, or transitional justice

Tella is used by:

- Activists, organizers and human rights defenders to safely document events in their communities, produce reliable and verifiable evidence, and store data encrypted on their mobile devices. - Media, professional reporters and citizen journalists to store sensitive media files encrypted as they travel, particularly as they cross borders. - Civil society professionals and humanitarian workers to conduct interviews and collect data in poorly connected environments or in conflict areas. - Electoral observation and monitoring organizations to monitor elections from inside and outside polling stations in real time and expose electoral fraud. - Research institutions and international organizations to conduct research, interviews or surveys in challenging environments, particularly in conflict areas.

You can read usage stories here: https://tella-app.org/user-stories

Detailed list of features

A detailed list of all Tella features can be found here: https://tella-app.org/features

License

MIT

What's new

v3.1.0Jun 11, 2026
  • Replaced geo-location provider. Bug fixes and minor improvements:
  • Solved crash on camera that was affecting some models of Pixel phones. Fixed import and delete original bug that prevented original file being erased from the device in some cases. Fixed screen security issue on on boarding (some screens were not hidden). Corrected capitalization of buttons. Fixed geo-location permission flow and solved a bug that prevented geo-location flow to continue, the first time permission was granted. Added option to hide Tella Web connection url from connection's setting. Fixed bug that didn't properly removed camouflage when changing lock type.

About this version

Version
3.1.0 (242)
Size
33.33 MB
Requires Android
5.0
Target SDK
21
Architecture
x86, x86_64, arm64-v8a, armeabi-v7a
Downloads
19
Updated
Jun 11, 2026
Package
org.hzontal.tellaFOSS

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