Applies to Crownline version 2.0 and later. Last updated: 10 November 2026.
Short version: since version 2.0, Crownline has no account and no server of its own. We never receive your photos or your measurements.
Photos you take or choose are analysed on your device and kept in the app's private storage. They are not sent to us or to anyone else. Checks that a photo shows the top of a head, or a face for a hairline scan, use Apple's Vision framework on your device.
If you back up your device with iCloud or a computer, the app's data is part of your own backup. You can delete a single scan, or everything, inside the app at any time.
The camera is used only while you take a scan. From your photo library the app receives only the photos you pick. If you choose to save a time-lapse or a card, it is saved to your library.
Only if you turn on Hair Weather, your location is rounded to about one kilometre and sent from your device directly to MET Norway's public forecast service, to get today's humidity and UV. We do not receive or keep it. MET Norway's own terms apply to that request.
If you lock the app, the check is done by iOS. Crownline never sees your face or fingerprint data.
Reminders are scheduled on your device. Nothing is sent to a server for them.
Subscriptions are handled by Apple. We do not see your payment details.
Crownline contains no third-party analytics or advertising software and does not track you. If you have agreed in iOS to share analytics with app developers, Apple may show us anonymous, combined figures such as download and crash counts.
Crownline is not directed at children under 13.
If this policy changes, the new version will be posted on this page with a new date.
Questions or requests: support page.