Last Updated: January 2026
We collect your phone number and location data (only when active) to anchor messages to physical locations. We do not track your movement history continuously.
Your location is used solely to verify if you are within range of a "Ghost" (Echo) to unlock it. Your phone number is used for authentication and account security.
Where possible, Ghostup employs zero-knowledge principles to verify location presence without storing precise coordinate history on our servers.
If you have questions, please contact us at support@ghostup.app.