Privacy Policy
Last updated: 22 August 2026
MathFoundry is a maths-learning app for iPhone and iPad. We do not sell personal data, run third-party advertising in the app, or use cross-app tracking for advertising.
What MathFoundry stores on your device
- Learning progress such as completed activities, quiz results, flashcard review history, badges, streaks, scores, and saved practice state
- App preferences such as your selected course, onboarding state, and feature settings needed to run the app
- Limited practice telemetry such as start, submit, timeout, and review-opened states stored locally to support app features and progress views
Optional data used for friend groups
If you use optional friend-group features, MathFoundry uses Apple CloudKit to store and sync:
- Group information such as a share code, group identifier, owner identifier, and created date
- Profile information such as your chosen display name and a generated app user identifier
- Leaderboard information such as challenge scores
Friend groups are optional. If you do not use them, this CloudKit social data is not needed for the core app experience.
Subscriptions and purchases
MathFoundry uses Apple StoreKit and RevenueCat to load subscription plans, process purchases and restores, and determine whether Premium access is active.
Apple and RevenueCat may process subscription-related data such as product identifiers, entitlement status, and purchase or restore events needed to operate the subscription flow.
Support communications
If you contact us by email, we receive the information you choose to include so we can respond or investigate a problem.
How we use information
- To operate learning features, saved progress, and resume behaviour inside the app
- To provide optional friend-group sharing and leaderboard features through CloudKit
- To process subscriptions and restores through Apple and RevenueCat
- To respond to support requests and improve the product
Third-party services used by the app
- Apple CloudKit for optional friend-group syncing and leaderboard data
- Apple StoreKit and the App Store for subscription purchases and restores
- RevenueCat for subscription plan loading and entitlement management
Your choices
- You can use the core app without joining a friend group.
- You can reset local progress from the app’s Settings screen.
- You can contact us with questions about your data.
Contact
Email us at [email protected].