App support

Crystal Index support

A crystal reference index for browsing, saving, learning, and keeping a private collection of notes.

Contact support

For help with Crystal Index, email support with the app name, your device model, iOS version, and a short description of the issue.

[email protected]

Privacy and purchases

Crystal Index stores saved crystals, notes, collection state, widget preferences, and browsing preferences on your device. There is no Crystal Index account. Signing in with Apple is optional and only used to sync and restore purchases; your Apple ID, name and email stay in your device's Keychain and are not sent to us. If you use crystal identification, the photo you take is sent to our server and on to an AI provider to work out which crystal it shows.

Common support topics

Missing saved crystals
Widget display issues
Crystal identification results or limits
Restoring premium access
iCloud sync status

Purchases and restores

Premium access is processed by Apple in-app purchase and managed with RevenueCat. We do not receive your Apple ID, payment card, or billing address. If premium access does not appear after purchase, use the restore purchases option inside the app, then restart the app. Subscription cancellation and refunds are handled by Apple from iOS Settings or reportaproblem.apple.com.

Data and permissions

If iCloud is enabled, saved crystals and notes may sync via Apple CloudKit to your own devices.

Camera, optional: Used only when you choose to identify a crystal from a photo. The photo is sent to our server for analysis. It is not linked to a name, account or Apple ID. If the camera is unavailable you can choose a photo from your library instead.
Widgets: Widgets read local Crystal Index data to display selected or daily reference items.