Privacy Policy

Effective October 10, 2026

What the app collects

Nothing. The app has no accounts, no sign-in, no ads, no analytics and no third-party code that collects data. It does not ask for a name, email, age, location, contacts, photos or microphone access. Its App Store privacy label reads "Data Not Collected."

Where progress is stored

Practice history, answer times, grids and days in a row are saved on the iPhone in the app's own storage. They are not sent to us or to anyone else, and they do not sync between devices. Reset progress in Settings clears them. Deleting the app deletes them.

Purchases

The one-time unlock is sold through Apple's App Store. Apple handles the payment and your Apple Account. We do not receive your name, email or payment details. The app checks with Apple whether the unlock has been purchased or redeemed with a code, and Family Sharing works through Apple.

Ad measurement

If you install the app after seeing one of our ads, the app uses Apple's privacy-preserving attribution frameworks, AdAttributionKit and SKAdNetwork, to tell the ad network that an install, a finished round or a purchase happened. Apple sends these signals in aggregate, delayed and without any identifier for you, your child or your device. The app does not include any advertising company's software.

Children

The app is used by children on a parent's iPhone. Because it collects no personal information from anyone, it collects none from children.

This website

This site sets no cookies and runs no analytics or tracking scripts. Like any website, its hosting provider, Vercel, processes standard request information such as IP addresses to deliver the pages and protect against abuse. Every file on this site is served from that host.

Changes

If this policy changes, the new version will appear on this page with a new effective date.

Contact

Questions about privacy can go through the Support page.