Your fasting data stays yours.

1. Scope

This policy describes data processing performed by the Fastyra iPhone app, its widgets and its companion app for Apple Watch. It does not cover data processing performed independently by Apple or by a website you choose to open under its own terms.

2. Information kept on your devices

Fastyra may store the following information locally because you create or configure it:

• fasting plans, start and finish times, active days and planned meals;
• fasting sessions, corrections and one-day schedule changes;
• language, time format, notification, quiet-hours and discreet-mode preferences;
• the minimum technical identifiers and receipts needed to apply widget and Watch actions safely and only once.

Fastyra does not ask for weight, age, sex, calories, location, contacts or Health data. It does not create a clinical or advertising profile.

3. No developer collection or tracking

Fastyra has no user account or developer backend. It contains no advertising, third-party analytics, tracking, IDFA integration or CloudKit synchronization. The app’s privacy manifests declare no tracking and no data collected by the developer.

4. Widgets, Apple Watch and notifications

• Widgets: receive only a minimal status snapshot through Fastyra’s local App Group. They do not read your complete history.
• Apple Watch: receives the state needed for the companion experience and sends basic commands through Apple’s WatchConnectivity framework. The iPhone remains the source of truth; the Watch does not receive your complete history.
• Notifications: are scheduled locally by iOS. Permission is optional and requested only for reminders you enable. The system may mirror them to your paired Watch.

The widget and Watch keep only the local snapshots, preferences and bounded command records needed for these features. None of this information is sent to a Fastyra server.

5. Exports, imports and external sources

You can create a JSON backup or export fasting sessions as CSV. A file leaves Fastyra only when you choose a save location or share it through the system sheet. After that, the file is under your control and the privacy terms of any service you select; Fastyra cannot delete copies stored elsewhere.

The Learn section contains optional links to external educational sources. Opening one launches the destination through the system. That website may receive ordinary web-request information, such as your IP address, under its own policy. Fastyra does not add your fasting history or an advertising identifier to the link.

6. Your controls and retention

Local information remains until you edit or erase it. In Fastyra you can correct or delete individual history entries, export a backup, restore a supported backup, or choose Erase all data. Full erasure removes the plans, history, preferences, local companion state and notifications controlled by Fastyra, then returns the app to its welcome setup.

Because Fastyra has no account or backend, the developer cannot view, recover or synchronize records from your device. Keep your own JSON backup before deleting the app or changing devices if you want to retain the history.

7. Permissions and device security

The only permission expected in version 1.0 is notifications, and the app’s core timer and history continue to work if you decline it. Fastyra relies on Apple’s app containers and system frameworks to separate its local data from other apps. Protecting access to your unlocked device and to files you export remains your responsibility.

8. Apple services

Apple may independently process App Store purchases, downloads, device diagnostics or system services under Apple’s privacy terms. That processing is not performed by Fastyra’s in-app data store and does not give Fastyra an account containing your fasting history.

9. Policy changes

If Fastyra’s data practices change, this page and its update date will be revised before a release that relies on the change. A future feature that collects or transmits data would require a new review and a clear disclosure.

Privacy questions

See the Fastyra support page for practical instructions on exports, erasure, notifications, widgets and Apple Watch. Fastyra cannot inspect your local records remotely.

For a privacy question, open a request on GitHub. GitHub issues are public, so do not include fasting history, exported files, health information or other sensitive data.