AI summary
Encrypted documentation tool for activists and journalists working in repressive environments. Protects photos, videos, audio and documents in a hidden, password-secured vault with verification metadata and server connections. Improved Verification Mode in this release organizes data into categories, exports CSV reports, and captures GPS faster even indoors.
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
Improved Verification Mode: • Organized information into 5 categories, each with its own help screen. • Verification information can now be saved as a CSV in Tella and attached to reports and connections. • Faster location, even indoors, and GPS is now requested before recording audio and video too. • Metadata is saved without waiting for Wi-Fi when offline. Bug fixes and minor improvements. Updated translations. Please consider helping us localize Tella.
About this version
- Version
- 3.4.0 (258)
- Size
- 33.77 MB
- Requires Android
- 5.0
- Target SDK
- 21
- Architecture
- x86, x86_64, arm64-v8a, armeabi-v7a
- Downloads
- 6
- Updated
- Oct 13, 2026
- Package
- org.hzontal.tellaFOSS
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