Privacy Policy

Effective: April 25, 2026 — Last updated: April 25, 2026

This Privacy Policy explains what data VariantDoku ("the App", "we", "us", "our") collects, how it is used, and the choices you have. By using VariantDoku you agree to the practices described here.

1. Data we do not collect

• We do not collect names, email addresses, phone numbers, or device identifiers.
• We do not use third-party analytics or advertising SDKs.
• We do not track you across other apps or websites.
• We do not access your contacts, photos, microphone, camera, or location.

2. Data we do collect

2.1 Anonymous puzzle activity

When you complete a puzzle, the App sends an anonymous request to our backend to increment a "solved" counter for that puzzle. The request contains only the puzzle's identifier — no user identifier, account, or device fingerprint is transmitted or stored.

2.2 Subscription state

Your subscription and purchase status is managed entirely by Apple's In-App Purchase system. The App reads your entitlement (whether you have an active Variant+ subscription or Lifetime purchase) from Apple's StoreKit. We do not see your Apple ID, payment information, or billing history.

2.3 Local app data

The following information is stored only on your device and never leaves it:

• Saved puzzle progress (cells, pencil marks, undo history, elapsed time)
• App settings (highlight peers, double-tap behavior, theme preferences)
• Daily-limit counters (for free-tier users)

You can clear this data at any time by deleting and reinstalling the App.

3. Apple's role

VariantDoku is distributed through the Apple App Store. Apple collects information related to your account, purchases, and subscriptions in accordance with Apple's Privacy Policy. We have no access to that information.

4. Server logs

Our backend server logs standard request metadata (timestamp, request path, HTTP status) for operational and security purposes. These logs may include the IP address of the requesting party, which is necessary for the connection to function. Logs are retained for up to 30 days and are not used for advertising or profiling.

5. Children

VariantDoku is suitable for users of all ages and does not knowingly collect personal data from anyone, including children under the age of 13. If you believe a child has provided personal data through the App, please contact us so we can address it.

6. Your rights

Because we do not collect personally identifying information, we cannot link any data to a specific individual. If you reside in the European Economic Area (GDPR) or California (CCPA/CPRA) and believe that we hold data about you, you may contact us at support@variantdoku.com and we will work in good faith to respond.

7. Changes to this policy

We may update this Privacy Policy from time to time. The "Last updated" date at the top of this page reflects the most recent changes. Continued use of the App after a change indicates acceptance of the updated policy.

8. Contact

Questions about privacy: support@variantdoku.com