Terms of Use for Think in Numbers on Android

Last updated: November 2, 2026

1. The app

Think in Numbers is provided by Oana Rinaldi for personal arithmetic practice. Classic features are free. Numbers Plus offers optional recurring subscriptions through Google Play.

2. Optional Numbers Plus

Both monthly and yearly plans unlock the same training tools. The localized price and billing period appear before you subscribe. Payment, renewals, cancellation and refunds are handled by Google Play. Subscriptions renew automatically unless canceled before renewal. Cancel through Google Play subscriptions to avoid the next charge. Removing the app does not cancel your subscription. Access continues through the paid period, subject to Google Play’s entitlement status. Apple and Google Play purchases are separate and do not transfer between stores.

3. Your progress

Practice records are stored only on this device. Uninstalling the Android app removes them. Use CSV export to keep a copy. Local progress is preserved when a subscription expires. Educational exercises do not guarantee a particular learning outcome.

4. Responsible use

Use the app lawfully and respect the app’s artwork and software. The app is supplied as available; it may be updated to fix issues or improve compatibility. These terms do not limit statutory consumer rights.

5. Privacy and support

Read the Privacy Policy. For support, contact oanaunciuleanu@gmail.com.