Customizable forms
Collect the specific data you need with over a dozen different question types (text, multiple choice, geolocation, etc), conditional logic, and data validation.
Verifiable evidence
Optionally, Tella can collect information about the user's device, network, and location to help researchers, lawyers, or journalists verify the origin of photos, videos, and audio recordings.
Offline mode
With poor connectivity or no internet at all, fill as many forms as needed, save them in Tella's encrypted storage, and send after reaching a reliable connection.
Interoperable
Tella is based on the Open Data Kit (ODK), an open standard with dozens of tools to choose from to create forms, manage users, and visualize the data collected.
Tella is a project of Horizontal, a nonprofit organization serving frontline defenders, activists and journalists through digital security support and tool development.
