Privacy Policy for Think in Numbers

Last updated: October 10, 2026

1. Your practice stays on your device

Think in Numbers does not require an account and does not send your practice history to the developer. Classic scores, streaks, saved games, preferences and statistics are stored locally. Optional Numbers Plus also stores workout history, skill accuracy, daily goals, completed daily workouts, missed questions and training theme preferences locally.

2. No advertising or analytics

The app contains no advertising SDK, third-party analytics, tracking, AI service or developer-operated backend. We do not collect your name, email, location, contacts, photos or identifiers through the app.

3. Optional Apple subscriptions

Every original Classic feature remains free. Numbers Plus is an optional auto-renewing monthly or yearly subscription. Both plans provide the same additional training tools. Apple processes payment, purchase verification, renewals, refunds and restoration through StoreKit. The app reads Apple-verified subscription status to determine access to Plus. We do not receive your payment card details. Apple's handling of purchases is governed by Apple's privacy policy and terms.

Classic and generated practice questions work offline. An internet connection is needed to load App Store prices, buy or restore purchases, and receive updated subscription status. Manage or cancel a subscription in your Apple Account settings. Removing the app does not cancel a subscription.

4. Sharing and export

When you choose Share Results or export your Plus workout history as CSV, iOS presents its share sheet. You choose the recipient or destination. The CSV contains workout dates, modes, answer counts, accuracy and duration. The developer does not receive this export.

5. Data retention and your choices

Local progress is retained on this device, including when a Plus subscription expires. An active subscription is needed to access Plus tools again. Classic best scores and streaks can be reset in Game Settings. Removing the app removes its local data; device backups may retain a copy according to your Apple settings. Purchase history is managed separately by Apple.

6. Younger users

The app does not ask children or adults to provide personal information. A parent or guardian should manage purchases using Apple's available purchase controls.

7. Support

If you choose to email support, we receive the information you include and use it to respond. Please do not send payment credentials. Contact: oanaunciuleanu@gmail.com.

8. Changes and terms

Policy updates will be posted on this page. Apple's standard Terms of Use apply to the app.