FastLine · Legal

Privacy Policy

Last updated: 13 June 2026

The short version: FastLine has no account and no servers. Everything you log stays on your device. We do not collect, store, sell, or transmit your personal data — there is no analytics network call and no ads.

What FastLine stores (on your device only)

Your fasts, history, notes, mood entries and settings are saved locally on your device (using Apple's on-device storage). They are included in your normal encrypted device backup if you use iCloud Backup, which is controlled by Apple, not by us. We never receive a copy.

Apple Health

If — and only if — you turn on the weight trend, FastLine asks permission to read your body-mass entries from Apple Health to draw a chart inside the app. This happens entirely on your device. FastLine does not write to Apple Health and never transmits or shares your health data. You can revoke access any time in Settings › Health › FastLine.

Purchases

Optional Pro purchases are processed by Apple through the App Store using StoreKit. We never see your payment details. Apple's privacy policy governs that transaction.

What we do not do

No account or sign-in. No third-party analytics or advertising SDKs. No tracking across apps or websites. No selling of data — we have no data to sell.

Children

FastLine is not directed at children under 13 and collects no personal data from anyone.

Changes

If this policy changes (for example, if we later add optional crash reporting), we will update this page and the "last updated" date.

Contact

Questions? Email kenz@kenzapps.com.

FastLine is an educational tracking tool, not medical advice.