Privacy Policy
Last updated: June 2026
1Information We Collect
We collect the following types of information when you use HeatStack:
- Account information: email address, username, display name, and profile photo.
- Collection data: sneaker details, photos, purchase prices, and notes you provide.
- Usage data: app interactions, features used, and device information.
- Camera and photos: only when you explicitly use the scanner or image upload features.
2How We Use Your Information
- To provide and improve the App experience.
- To display your collection and profile to other users (based on your privacy settings).
- To calculate market values and recommendations.
- To send notifications you've opted into.
- To detect and prevent spam and abuse.
3Information Sharing
We do not sell your personal information. Your public profile and collection are visible to other users unless you set your profile to private.
We may share anonymized, aggregated data for analytics. We use third-party services (Supabase for data storage, Gemini for AI features) that process data on our behalf.
4Data Storage & Security
Your data is stored securely on Supabase (PostgreSQL with Row Level Security). Images are stored in encrypted cloud storage.
We use industry-standard security measures to protect your data.
5Your Rights
- Access: You can view all your data within the App.
- Correction: You can edit your profile and collection at any time.
- Deletion: You can delete your account and all associated data through Settings.
- Privacy: You can set your profile to private to hide your collection from others.
- Export: Contact us to request a copy of your data.
6Children's Privacy
HeatStack is not intended for children under 13. We do not knowingly collect information from children under 13. If you believe a child has provided us personal information, please contact us immediately.
7Third-Party Services
The App integrates with the following third-party services, each with their own privacy policies:
- Supabase — authentication, database, and storage
- Google Gemini — AI image recognition for the scanner
- RapidAPI — sneaker market data and pricing
- RevenueCat — subscription management
- PostHog — anonymous usage analytics
- Sentry — error tracking and crash reporting
8Cookies & Tracking
The App does not use browser cookies. We use anonymous analytics to understand feature usage and improve the App.
This website may use essential cookies for functionality only.
9Changes to This Policy
We may update this policy at any time. We will notify you of significant changes through the App. Your continued use of HeatStack after changes constitutes acceptance of the updated policy.
10Contact Us
For privacy questions or data requests, contact us at [email protected]