Tella
4.8star
242 reviews
100K+
Downloads
Everyone
info
About this app
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.
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.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Ratings and reviews
4.8
238 reviews
Dutch Incognito
- Flag inappropriate
December 27, 2025
tella works perfectly best, the only problem is ,if i wanna add several file like 20 or more file to tella it need time becouse i have to add one by one . it would be great if theres an option to add file by folder or more than one file at once so its just one tap and boom, also pls update tell@fdroid 😁
1 person found this review helpful
Horizontal
December 29, 2025
Thank you for your nice words! <3
- we are working on an update for the f-droid store, it will be ready by February :)
- bulk imports are harder to implement, so we are currently fundraising for it.
If you have any other feedback, please write to us: contact@tella-app.org
Anurag UPPCL
- Flag inappropriate
January 19, 2026
There is not any fingerprint lock option.
Horizontal
January 21, 2026
Hello! thank you for the review. We are currently looking for funding to try to add a more lock option. We hope we can have fingerprint unlock soon.
Alps
- Flag inappropriate
February 20, 2026
A good vault for sensitive files that can disguise itself as a functional calculator. It is also open-source (MIT license), which is nice. However, it seems like the app doesn't support rotating to landscape, even when playing videos.
Horizontal
February 21, 2026
Thank you so much for this review and feedback. We are trying to fundraise to get that feature implemented, as many users have mentioned the need for it. In case you have any other feedback or would like to contribute to Tella development, please contact us! https://tella-app.org/contact-us
What’s new
- Fixed bug on Dropbox connection: "This app is not valid" error.
- Added added lock-protection guidance for new users and while changing lock.
- Added support for any file manager (including FOSS ones).
- Refactored permissions, prioritizing user's privacy (Sunsetting submissions to a Shared Drive folder + more granular permissions).
- Preparatory work to be able to merge Tella Android and Tella FOSS codebases.
- Bug fixes and minor improvements.
Full notes: https://tella-app.org/releases/
- Added added lock-protection guidance for new users and while changing lock.
- Added support for any file manager (including FOSS ones).
- Refactored permissions, prioritizing user's privacy (Sunsetting submissions to a Shared Drive folder + more granular permissions).
- Preparatory work to be able to merge Tella Android and Tella FOSS codebases.
- Bug fixes and minor improvements.
Full notes: https://tella-app.org/releases/
App support
About the developer
Horizontal
contact@wearehorizontal.org
1100 13th St NW Ste 800
Washington, DC 20005
United States
+1 202-322-3939
