Proof Privacy Policy

Last updated: August 2026

Proof ("we," "us," "our") respects your privacy. This policy explains what data we collect, how we use it, and your rights.

Information We Collect

• Account information: email address and authentication data when you sign up
• Photos: images you take to verify habit completion
• Usage data: habits created, streaks, app activity, and interactions with friends/social features
• Device information: basic technical data needed for app functionality

SMS & Phone Number Verification

If you choose to add a phone number to your account, we collect and use it solely to send one-time SMS verification codes for account security and to enable optional friend discovery via contact matching. We do not use your phone number for marketing or promotional messages, and we do not sell or share your phone number with third parties for marketing purposes.

Message and data rates may apply. Message frequency varies based on user-initiated verification requests only. Reply STOP to opt out of messages, or HELP for assistance.

When using the "Find Friends from Contacts" feature, your phone contacts are normalized and hashed on your device before being sent to our servers for matching. Raw contact names and phone numbers are never uploaded or stored — only irreversible hashes are used to check for matches with existing users.

How We Use Your Data

• To verify habit completion using AI-based photo analysis
• To maintain your account, streaks, and progress history
• To enable optional social features (sharing proofs with friends,)
• To improve app performance and features

Photo Processing Photos you submit for habit verification are processed using AI vision technology to confirm they match the habit being logged. Photos may be stored to maintain your habit history and, if you choose to share them, shown to friends within the app. Photos are not sold or shared with third parties for advertising purposes.

Data Storage Your data is stored securely using industry-standard cloud infrastructure (Supabase). We take reasonable measures to protect your information from unauthorized access.