Privacy Policy

Information we collect

1) Information you provide in the app (stored locally)

Biwo stores the following on your device using local storage:

• Onboarding choices (fasting method, eating window, goals)
• Preferences and settings (notifications, display name)
• Fasting history (start time, end time, method used)
• Review prompt flags (e.g., whether a review request already happened)

This information is stored locally on your device. No account is required.

2) Analytics data (PostHog)

Biwo uses PostHog analytics to measure product usage and improve the app. Events may include:

• Fast started or completed
• Fasting method selected
• Onboarding step reached
• Feature usage patterns

We may also send aggregated onboarding and preference answers (for example, your chosen fasting method or goals) as event properties.

Important: Biwo does not intentionally collect sensitive personal information such as precise location, contacts, photos, or health data beyond fasting timers.

3) Notifications

If you allow notifications, Biwo schedules local notifications directly on your device to remind you about your fasting windows. Biwo does not send push notifications from a server.

How we use information

We use the information described above to:

• Track and display your fasting progress
• Remember your preferred fasting method and eating window
• Improve the app (analytics and product decisions)
• Deliver local reminders if you enable notifications

Data storage and retention

• Local app data remains on your device until you delete the app or reset the app's settings.
• Analytics events may be retained in PostHog for a period of time to operate and improve the service.

Sharing and disclosure

We do not sell your personal information.

We may share limited information with service providers strictly to operate the app (for example, analytics through PostHog). These providers process data on our behalf and under their own terms and security measures.

Your choices

• You can disable analytics by turning off “Analytics” in the app settings (if available) or by restricting tracking permissions at the OS level.
• You can disable notifications at any time in iOS Settings.
• You can delete the app to remove locally stored data.

Children's privacy

Biwo is not directed to children under 13. We do not knowingly collect personal information from children under 13.

International transfers

Analytics data may be processed in countries other than your own, depending on where our service providers operate.

Changes to this policy

We may update this Privacy Policy from time to time. We will update the “Effective date” above and publish the new version at this same URL.

Contact

If you have questions about this Privacy Policy, please contact: contact [at] reachus.app