Last updated: October 4, 2026
Math Masters Formula Encyclopedia ("the App") is developed by an independent developer. We are committed to protecting your privacy. This policy explains what data we collect and how we use it.
The "Scan to Find a Formula" feature lets you take a photo or choose an image from your photo library to recognize a printed formula. Camera access is requested only when you use this feature. All image processing (cropping and text recognition) happens entirely on your device. Images are never uploaded to any server. Scan history (recognized text, top match, and a small thumbnail) is stored only locally on your device, keeps at most the 20 most recent entries, and can be deleted individually or cleared entirely at any time.
The App uses Apple's on-device Foundation Models for AI-powered Q&A and for tidying recognized formula text. All AI processing happens entirely on your device. No queries or responses are sent to any server. This feature requires iPhone 15 Pro or later with iOS 18.1+.
When a formula cannot be found locally, you may choose to look it up online. This feature is off by default and can be enabled in Settings. If enabled, the App sends only the recognized text you choose to look up (never any image) to Wikipedia and, for integer sequences, the OEIS. The first time you use it, the App explains this and asks for your consent. You can withdraw consent at any time by turning the feature off in Settings. These queries are governed by the privacy policies of the Wikimedia Foundation and the OEIS Foundation.
Purchase transactions are processed by Apple through the App Store. We do not have access to your payment information. Apple's privacy policy governs these transactions.
The App stores your preferences, favorites, learning progress, and scan history locally on your device. If you enable iCloud sync (future feature), this data is stored in your private iCloud container, accessible only to you.
The App is rated 4+ and is suitable for all ages. We do not knowingly collect any information from children.
The App integrates no third-party analytics, advertising, or tracking SDKs. The only external services contacted are Wikipedia and the OEIS, and only when you explicitly use the optional online lookup described in Section 4.
We may update this Privacy Policy from time to time. Any changes will be reflected on this page with an updated "Last updated" date.
If you have any questions about this Privacy Policy, please contact us at: