Last updated: 14 September 2026
Reaction is designed to respect your privacy.
Data we collect ourselves: None. We do not collect, store, or transmit any personal data. There is no account and no sign-in.
Your scores, streaks, and settings are stored only on your device (using Apple's SwiftData). This data never leaves your device. Deleting the app removes it.
The free version shows occasional full-screen ads between games, delivered by Google AdMob. To show them, AdMob may receive technical information such as a device identifier, approximate location derived from your IP address, and basic device data. We request NON-PERSONALIZED ads, so this data is not used to build an advertising profile of you or to track you across other apps. AdMob's own policy: https://policies.google.com/technologies/partner-sites
A one-time in-app purchase removes all ads permanently. Purchases are handled by Apple; we never see your payment details. Your purchase is restored via your Apple Account on any of your devices.
If you sign in to Game Center, your scores are submitted to Apple's leaderboards under your Game Center nickname. This is handled entirely by Apple. You can opt out by signing out of Game Center in iOS Settings.
With your permission, the app schedules local reminders to help you keep your daily streak. These are generated on your device; nothing is sent to anyone. You can disable them anytime in iOS Settings.
We do not knowingly collect data from children. The app is rated for all ages and requests non-personalized ads only.