Privacy policy
Updated 15 Oct 2026
This policy describes how the Missing Piece team (“we”) collects, uses and shares information when you use the Missing Piece app. The app contains no advertising or third-party analytics, and does not track you across other companies’ apps or websites.
What we collect
Account
A random identifier created by the app on first launch (not a device identifier), the app version, and when the account was created and last used.
Progress
Puzzles you complete, with the difficulty, hints used and date, and artist stories you unlock.
Apple
If you use Sign in with Apple: the user identifier Apple provides, your email address (or Apple’s relay address if you use Hide My Email), and an Apple token, stored encrypted. If Apple provides your name, it is used as your nickname until you change it.
Profile
If you have signed in with Apple: the nickname and the portrait you choose in Me › Profile, and when you last changed them.
Purchase
The App Store transaction record: transaction ID, product, date and refund status. We do not receive your payment details.
Usage
In-app events, such as starting or completing a puzzle, reading a story, or viewing, buying or restoring the pass, with the time, the artwork or artist, the difficulty and the language, linked to your account identifier.
Messages
If you contact us: your message and the details the app adds to it (account ID, Apple ID email if signed in, app and iOS versions, device model), which you can remove before sending.
Legal basis: providing the app you use, and for usage records, our legitimate interest in keeping it working.
Sharing
We do not sell your personal information. We share it only with service providers that process it on our behalf, listed below by what they do, or where required by law. Apple processes Sign in with Apple and purchases under its own privacy policy.
Hosting
Our server and database.
Delivery
Delivers the app’s images and forwards email you send us.
Messages you send us.
Push
Only if you turn on notifications for new collections: your device’s push token and the release topic, to deliver them. No account identifier is sent.
How long we keep it
Account
Until you delete your account.
Purchases
Purchase records are kept after an account is deleted, no longer linked to it, so refunds can be processed.
Your choices and rights
If you have signed in with Apple, you can delete your account in Me › Settings › Delete account. This deletes your account and the information linked to it, and revokes the app’s Sign in with Apple access. Your purchase remains with your Apple ID. If you have not signed in, contact us from Me › Contact the team to delete your account.
To get a copy of your information, correct or delete it, or have us stop or limit using it, write to [email protected]. You can also complain to your data protection authority.
Changes
We may update this policy. The date at the top shows when it was last updated.
Contact
Contact the team regarding any questions: [email protected].