It can be said in one sentence: your letters live only on your own device — advertising and payments are handled by Apple and Google under their own policies.
The app itself has no server, no accounts, and no user database. Everything you create — reading progress, collected letters, and chapter records — is stored locally on your device and is never uploaded by us. Deleting the app removes all of it at once.
Starting with version 1.2.0 the app is free to download: the first chapters are free to read, and free readers may see ads. Ads are served by Google (AdMob).
On first launch the app may ask for App Tracking Transparency permission. If you allow it, Google may use your advertising identifier to show more relevant ads; if you decline, the app still works exactly the same — ads are simply matched through Apple's privacy-preserving SKAdNetwork instead.
Google may collect device identifiers, coarse location (derived from IP address), and diagnostic data for advertising and analytics purposes. These are handled under Google's Privacy Policy; we do not receive them and cannot identify you from them.
Users who purchased the app before it became free, or who buy the one-time unlock, never see ads.
A one-time, non-consumable in-app purchase unlocks all chapters. The purchase is processed entirely by Apple; we never see your payment details or your Apple account. The unlock status can be restored on any device with the same Apple ID via "Restore Purchase".
The app offers an optional nightly reading reminder and a Home Screen widget. Both permissions are your choice and can be turned off in iOS Settings at any time. Widget data is kept in the device's App Group container and is not uploaded.
This app is not directed at children under 13, and we do not knowingly collect personal information from children.
Your reading data never leaves your device, so there is no remote channel through which it could leak. Deleting the app erases all local data at once.
If our data practices change materially, we will say so on this page and update the effective date.