Rollin Privacy Policy
Effective date: October 29, 2026
1. Operator and information collected
難波隼士 (Hayato Namba) processes email addresses, authentication information, user IDs, display names, group names and memberships, goal, challenge and offer content, achievement times, reactions, avatar items, equipment, rewards and progress, in-app notifications, report reasons and target IDs, and blocks to provide Rollin. Purchases involve products, transaction identifiers, subscription expiry dates, events and entitlements. Enabling notifications stores an Expo Push token, OS, user ID and update time. Providers may process IP addresses, access logs, device information and SDK diagnostics for operations and security.
Authentication sessions, language and notification settings are stored on your device. We do not request location, contact lists, photos or audio. Do not enter sensitive information such as health information or other people's personal information in content.
2. Purposes and sharing
We use information for authentication, group and goal features, synchronization, avatars and rewards, notification registration, purchases, restoration and entitlement verification, fraud prevention, safety, troubleshooting and support. Content, display names and progress are visible to other users according to participation and viewing permissions. We do not sell personal information, serve ads, track users for advertising or request App Tracking Transparency (ATT) permission. Fixed sponsor attribution is not tracking advertising. We do not disclose personal information to third parties except necessary provider processing, user-directed sharing, consent, legal requirements or protection of rights and safety.
3. Providers and international processing
Supabase provides authentication, database hosting and realtime synchronization. RevenueCat and Apple App Store provide subscriptions, in-app purchases, restoration and entitlement management. We send your Supabase UUID to RevenueCat as your App User ID. The operator does not receive or store payment card details.
Notification registration uses Expo Push Service. This version only registers and removes tokens; push delivery has not been implemented. Delivery, if provided, goes through Expo and Apple APNs or Google FCM. Permission is requested when you enable notifications. You can stop them through OS notification settings and in-app push deregistration (deregistration covers all devices on the account). Notification category and quiet-hour preferences are currently saved only on the device.
These providers and their subprocessors may store or process information outside Japan, including in the United States, where privacy laws may differ. We take necessary security and provider management measures. The providers' own privacy policies also apply.
Supabase: https://supabase.com/privacy
RevenueCat: https://www.revenuecat.com/privacy/
Apple: https://www.apple.com/legal/privacy/
Expo: https://expo.dev/privacy
4. Retention and account deletion
We retain information as needed to provide the service during use. Afterward, we retain only what is necessary and for as long as necessary for legal compliance, safety or disputes, and delete or anonymize information no longer needed.
Go to Settings → Account → Delete account, review the warning, type DELETE and confirm. When delete_own_account completes successfully, the Auth account and associated database data linked by cascading foreign keys are immediately deleted, including the profile, owned groups, memberships, goals, equipment, subscriptions, notifications, and reports and blocks linked to that user. Owned groups shared with others are also deleted. Sender IDs in notifications addressed to other users and user IDs in early-adopter allocation records may be cleared while those records remain. Webhook event deduplication records remain. This RPC does not anonymize and retain all reports.
Supabase backups may retain data for a limited period under the provider's retention cycle. RevenueCat and Apple customer and transaction records and provider logs are not automatically deleted by this action and follow their own policies and applicable law. Separate safety records or anonymized abuse-prevention records may also be retained as necessary. Email us about deletion and retention. Account deletion does not cancel an Apple subscription.
5. Your rights and minors
You can edit registration details in the app. Email requests for access, correction, deletion, restriction of use or information about international processing and providers. We respond under applicable law after necessary identity verification. You may also contact us about deletion if you cannot access the app. Do not send passwords or card details. Minors must obtain a parent or guardian's consent. Guardians may contact the same address.
6. Security, changes and contact
We protect information through access controls and encrypted communications and limit access to necessary personnel, without guaranteeing absolute security. We announce material changes and their effective date in the app or on the public site and obtain consent where needed.
Operator: 難波隼士 (Hayato Namba)
Email: rollin1.partner@gmail.com
Further contact information is provided upon request by email.