Privacy Policy
Effective and last updated August 11, 2026. MomentArt is provided by Chang Studio. This policy explains what data we process, why, and how you can delete it.
1. What we process
- Account data: a Supabase user identifier and, depending on how you sign in, an email address or an Apple/Google provider identifier.
- Your private museum data: saved artworks, exhibitions and artists; private collection names, artwork membership and order.
- Pass data: your current Museum Pass entitlement, product, store, and expiration status. Payment credentials are handled by Apple or Google and are not received by MomentArt.
- Local viewing data: recent views, image cache, preferences, and offline artwork snapshots stored on your device.
- Operational data: limited request, security, device, network, crash, and service logs processed by our infrastructure providers when needed to operate and protect the service.
MomentArt does not currently use advertising or cross-app tracking SDKs. It has no public social profile, comments, followers, or user artwork upload.
2. Why we use it
We process this data to authenticate you; sync your saved items and private collections; recognize and restore your Pass; deliver licensed artwork images; provide offline viewing you request; prevent abuse; troubleshoot failures; and respond to support or deletion requests.
3. Service providers
- Supabase — authentication and PostgreSQL account data.
- Cloudflare — private artwork image delivery through R2/CDN.
- RevenueCat — subscription entitlement management.
- Apple and Google — sign-in and store billing when you choose their services.
These providers process data under their own policies and our service arrangements. Data may be processed in countries or regions outside yours, with safeguards provided by the relevant provider and applicable law.
4. Retention and deletion
Active account data is kept while your account is open and as needed to provide the service. In-app account deletion removes your MomentArt account and associated saved data from the active database and requests deletion of the linked RevenueCat customer record. Supabase backup and operational log copies may remain for up to 7 days before automatic expiry. Apple and Google may retain purchase records under their own legal and store policies.
Recent views, offline snapshots, and image cache on the device where deletion is initiated are cleared by the app. Data on another offline device is removed when that app signs out/synchronizes, or when you clear/uninstall it.
5. Your choices
- Browse without creating an account.
- Use Settings to clear offline content, sign out, or delete your entire account.
- Manage or cancel a subscription in your App Store or Google Play account. Deleting MomentArt does not cancel store billing.
- Use our web deletion page if you cannot access the app.
6. Security, children, and changes
We use access controls, private media storage, row-level database security, and short-lived image URLs. No system is perfectly secure. MomentArt is a general-audience art service and is not directed to children under 13. We will update this page when our practices materially change and revise the date above.
7. Contact
For privacy questions or requests, email psychangstudio@gmail.com.