Privacy Policy

Math Daily · Sawir Studio LLC · Effective September 29, 2026

Math Daily is built to collect as little as possible. There are no accounts, no ads and no tracking. This policy explains exactly what data exists and where it goes.

Data stored on your device and in your iCloud

Your practice history, per-operation stats, missed problems, daily streak and settings are stored on your device. If you're signed in to iCloud, your history and missed problems also sync between your devices through your own private iCloud account. We never receive this data and can't access it. Deleting the app removes it from the device; you can remove the iCloud copy in Settings › [your name] › iCloud.

Purchases

Subscriptions are sold and billed by Apple through your Apple Account. We never see your name, email address or payment details.

To confirm purchases and unlock Math Daily Pro, the app uses RevenueCat, a subscription management service. RevenueCat receives:

• a random, anonymous identifier created by the app (not linked to your name or Apple Account);
• purchase details such as the product, price, currency and purchase, renewal and expiry dates;
• basic technical information such as device model, operating system version, app version, country or region, and IP address.

This information is used only to validate purchases, provide access to Pro features, and help us understand subscription performance in aggregate. RevenueCat processes it on our behalf under its own privacy policy.

Game Center leaderboards

If you're signed in to Game Center, Math Daily submits your leaderboard scores (fastest perfect 10-problem session, total problems solved and longest streak) to Apple's Game Center under your Game Center profile. Apple handles this data under its own privacy policy; we don't receive your Apple Account details. You can sign out of Game Center in Settings at any time.

Problem reports

Apple may give the app anonymous crash and performance reports from your device, if you've chosen to share analytics with app developers. Math Daily keeps the most recent few on your device and never sends them on its own. If you tap Report a Problem in Settings, they're attached to an email draft along with the app version, device model and iOS version. You can read or remove them before deciding whether to send it.

What we don't do

• We don't show ads or use advertising identifiers.
• We don't track you across other apps or websites.
• We don't sell or share your data with data brokers.

Children

Math Daily is suitable for all ages and does not knowingly collect personal information from anyone, including children. Purchases require an Apple Account and are subject to Apple's parental controls such as Ask to Buy.

Your choices

You can delete the app at any time to remove all on-device data. To ask about or delete the purchase records held by RevenueCat, email us at the address below and include your purchase receipt if possible.

Changes

If this policy changes, we'll update this page and the effective date above.

Contact

Sawir Studio LLC · ricardo@sawirstudio.com