Privacy
Kairou does not collect any data.
What we collect
Nothing. Kairou does not collect, store, or transmit any personal data. There are no analytics, no tracking, and no third-party services running in the app or on this website.
Your data stays on your device
All study progress, settings, and preferences are stored locally on your device. This data never leaves your device and is not accessible to us or any third party.
No account, no ads, no trackers
No sign-in required. No ads. No third-party trackers or advertising SDKs. To delete all data, just uninstall the app.
Changes to this policy
If we ever change our privacy practices, we'll update this page with a new date.
Last updated: May 2026