Privacy Policy

Polar ("we", "our", or "us") is committed to protecting your privacy. This policy explains what information we collect, how we use it, and your rights regarding your data when you use the Polar mobile app.

1. Information We Collect

Account information

When you create an account, we collect your email address via Firebase Authentication. You may also sign in with Apple or Google, in which case we receive only the information those services share (typically your email and a display name).

Mood data

We store the mood entries you create: a numeric mood score (1–10), an optional note, and the timestamp of each entry. This data is associated with your account and stored in Google Firestore.

Subscription information

If you purchase a Polar Premium subscription, payment is processed by Apple or Google. We use RevenueCat to manage and verify subscriptions. RevenueCat receives a non-personal subscriber ID and purchase receipts. We do not collect or store your payment card details.

Usage data

We may collect anonymous usage analytics through Firebase Analytics (e.g., which screens are visited, app crashes). This data does not identify you personally and is used solely to improve the app.

2. How We Use Your Information

• To provide and operate the Polar app and your account
• To display your mood history and trends within the app
• To verify your subscription status
• To send essential service communications (e.g., password reset emails)
• To improve the app based on aggregate, anonymous usage patterns

3. Data Sharing

We do not sell, rent, or trade your personal information. We share data only with the following service providers as necessary to operate the app:

• Google Firebase — authentication, data storage, and analytics
• RevenueCat — subscription management and verification
• Apple / Google — in-app purchase processing

Each provider is contractually bound to handle your data in accordance with applicable privacy laws.

4. Data Retention

Your account data and mood entries are retained for as long as your account is active. If you delete your account (see below), all associated data is permanently deleted from our systems within 30 days.

5. Your Rights and Choices

Access and export

You can view all your mood entries within the app at any time. To request a full export of your data, contact us at the address below.

Deletion

You can delete your account and all associated data from within the app (Settings → Delete Account). This action is permanent and cannot be undone. Alternatively, email us to request deletion.

Opt-out of analytics

You can opt out of Firebase Analytics on your device by disabling ad tracking in your device settings. This does not affect your ability to use the app.

6. Children's Privacy

Polar is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us and we will delete it promptly.

7. Security

We use industry-standard security measures, including encrypted data transmission (TLS) and Firebase's built-in security rules, to protect your data. No method of transmission or storage is 100% secure, but we take reasonable steps to protect your information.

8. Changes to This Policy

We may update this privacy policy from time to time. When we do, we will update the "Last updated" date at the top of this page. Continued use of the app after changes constitutes acceptance of the updated policy.

9. Contact Us

For any privacy-related questions, data requests, or concerns, please contact us at: