Privacy Policy
Effective August 29, 2026
Math by Anna is a Grade 1–12 math practice app developed by Ying Zheng. We designed it to work without advertising, third-party analytics, chat, public profiles, or child accounts.
Information stored on the device
Math by Anna may save the selected grade, in-progress and completed practice sessions, accuracy, exam scores and history, stars, and streaks locally on the device so the app can resume work and show progress. This information is not transmitted to the developer.
Information we do not collect
Math by Anna does not ask for or collect a child’s name, email address, birth date, precise location, photos, contacts, school information, or account credentials. The app does not use third-party advertising or analytics SDKs and does not track users across apps or websites.
Feedback and support
An adult may choose to open the device’s Mail app from the Grown-ups area and send feedback. Nothing is sent automatically. If an adult sends an email, we receive the sender’s email address and message so we can respond. Please do not include a child’s name or other personal information.
Purchases
In-app purchases, restorations, and offer-code redemptions are handled by Apple. The developer does not receive or store payment-card details. Apple’s handling of purchase information is governed by Apple’s own privacy policy.
Sharing and disclosure
Because Math by Anna does not transmit a child’s practice data to the developer, we do not sell, rent, or share that data with advertisers or other third parties.
Parent and guardian controls
Purchase-related features are placed behind a parent gate. Parents and guardians can remove locally stored app information by using available reset options in the grown-up area or by deleting the app from the device.
Changes to this policy
We may update this policy if Math by Anna’s features or privacy practices change. The effective date at the top of this page will be updated when a revision is published.
Contact
For privacy questions or support, email yingzheng90@icloud.com.