Terms of Use · Google Play

Subscriptions renew automatically unless cancelled in Google Play. Lifetime is a single purchase. The cloud tutor is for adults aged 18 and over only, requires separate consent and internet, and is limited to 20 questions per day and 500 per month. Buying Pro does not override the age restriction.

Subscriptions renew automatically unless cancelled in Google Play. Uninstalling the app does not cancel a subscription.

One payment, no automatic renewal. Restore using the same Google Play account.

For adults aged 18 and over only. Ask about the subject in your own words. The online tutor explains in your language. Internet, Pro and separate consent are required. The handbook and offline exercises are available independently.

Children may use the handbook and offline exercises. The cloud tutor is available only to adults aged 18 and over who declare their age on this device and separately consent to sending questions. This is a self-declaration, not verified identity. The date of birth is checked locally, then discarded; it is not saved or sent. Only an adult or restricted profile and the policy version are saved on the device. An adult eligibility declaration and policy version accompany tutor requests; no date of birth is included. Underage and skipped profiles cannot send questions or use the cloud tutor. Withdrawing AI consent does not reset the age profile. Pro does not override the age restriction.

All Pro features are available while this access remains valid. The cloud tutor still requires an adult profile aged 18+, separate consent and internet access, with the same question limits. This is not a subscription or a purchase.

If you redeem an access code supplied by ULTIMATE DIGITAL, the code is sent over HTTPS to our server for verification and is not saved on this device or in our database. The device saves a signed access credential valid for up to 30 days and verified access metadata cached for up to 3 days for offline use. The server stores a hashed licence identifier and access status. Access can be revoked; cloud access is checked for every question. Removing code access deletes the saved credential and its local access metadata. Code access never overrides the tutor age restriction or question limits.

AI replies may contain mistakes. Check formulas, facts and results against the handbook.

For adults aged 18 and over only. Your question, selected lesson text and recent conversation will be sent through ULTIMATE DIGITAL's server to OpenAI to generate a reply. Do not include personal information. Photos stay on this device. OpenAI may retain content for abuse monitoring, normally for up to 30 days, with legal and safety exceptions. Internet and Pro are required. AI can make mistakes; check its answers. Up to 20 questions per day and 500 per month. You can withdraw consent in About the app.

If you send a report, this answer and the selected reason are sent to ULTIMATE DIGITAL for review and stored for up to 31 days. Your question and the rest of the conversation are not included.