Privacy Policy

Last updated: August 2026

Lighter ("we", "us", or "our") respects your privacy. This Privacy Policy explains what information we collect, how we collect it, how we use it, with whom we share it, and the choices you have. Lighter is an intermittent fasting and health companion app. By using the app, you agree to the practices described in this policy.

1. Information We Collect

• Account information: email address or sign-in identifier when you create an account using email, Google, or Apple sign-in. Account creation is optional; you may use most app features without registering.
• Health and fasting records you create: fasting sessions, weight entries, water intake, calorie/meal records, daily health logs, and custom tasks that you add in the app. These records are stored locally on your device and are not sent to our servers.
• Apple Health / HealthKit data: with your permission, Lighter reads data from the Apple Health app (such as step count) to show your daily activity progress. Lighter may also write an activity record back to the Apple Health app, but only when you explicitly confirm and authorize it. The current version does not automatically write or modify any health data. See Section 3 for details.
• Device information: device timezone and local time, used to schedule reminders and interpret your daily plan.
• Subscription status: subscription tier, product identifier, and related purchase status needed to unlock Lighter Plus features. This is processed by Apple's App Store (StoreKit).

2. How We Collect Information

• Directly from you: when you create an account, enter fasting or health records, or adjust settings.
• From your device: locally stored health and fasting records, device timezone, and Apple Health data (only with your permission).
• From Apple: subscription and purchase status via Apple's StoreKit / App Store infrastructure.

3. Health Data (Apple Health / Health Connect)

Lighter can show your daily step count alongside your fasting plan. The source depends on your platform: Apple Health (HealthKit) on iOS, Health Connect on Android.

• What we read: your daily step count. Nothing else is read from either health store.
• Read-only: Lighter never writes, modifies or deletes anything in Apple Health or Health Connect.
• Where it stays: step data is read on your device to display your progress. It is not uploaded to our servers, not shared with any third party, never sold, and never used for advertising, marketing, or profiling.
• Optional: Lighter works fully without this permission — you can enter steps manually instead.
• How to revoke:
  • iOS: Settings > Privacy & Security > Health > Lighter
  • Android: open the Health Connect app > App permissions > Lighter

4. How We Use Information

• Provide fasting, weight, water, meal, and activity tracking features.
• Keep your account accessible and let you restore membership access across your devices.
• Process subscription status and manage Lighter Plus access.
• Schedule reminders and notifications based on your plan and settings.
• Improve reliability and respond to support requests.

5. With Whom We Share

We share your data only as described in this policy:

• Apple App Store / StoreKit (iOS) and Google Play Billing (Android) - subscription and purchase data, processed by the store you purchased from to manage your purchases.
• Apple Health / HealthKit (iOS) and Health Connect (Android) - on-device, read-only access to your step count, as described in Section 3. This data stays on your device and is never sent to our servers.
• We do not sell your personal data, including your health data. We do not share your data with advertising networks or data brokers.

6. Data Security

We use reasonable technical and organizational measures to protect your data. Account and subscription data transmitted between the app and our servers is protected using encrypted (HTTPS/TLS) network connections. Your health and fasting records are stored locally on your device and are not transmitted to our servers.

7. Data Retention

We retain your account information while your account is active or as needed to provide the service. Your health and fasting records are stored on your device and remain until you delete them in the app or delete the app. You may request deletion of your account and related server-side data at any time (see Section 8).

8. Your Choices

• Account deletion: Delete your account and all associated server-side data directly in the app via Profile > Account > Delete Account. This action is permanent and cannot be undone. See our delete account page for details.
• Local data: Edit or delete individual fasting sessions, weight entries, water records, and tasks inside the app at any time. You can also clear all local data from Profile > Data.
• Health data access: Revoke the permission at any time — iOS: Settings > Privacy & Security > Health > Lighter; Android: the Health Connect app > App permissions > Lighter.
• Subscriptions: Manage or cancel at any time — iOS: Settings > Apple Account > Subscriptions; Android: Play Store app > Menu > Payments & subscriptions > Subscriptions.
• Account sign-in: You may sign out at any time; signing out does not delete your account or data.

9. Children's Privacy

The app is not directed to children under 13, and we do not knowingly collect personal information from children under 13. Lighter is a fasting and health tool and should not be used to create fasting plans for minors, during pregnancy or breastfeeding, or by people with type 1 diabetes, an eating-disorder history, or relevant medication or health conditions. If you believe a child has provided us with personal information, please contact us so we can delete it.

10. Changes to This Policy

We may update this Privacy Policy from time to time. Material changes will be reflected by updating the "Last updated" date above and, where appropriate, notifying you in the app.

© 2026 Lighter. All rights reserved.