Last updated: 12 March 2026

Sync Garden ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how ("we") collects, uses, and shares information when you use our mobile application Sync Garden (the "App").

By using the App, you agree to the collection and use of information in accordance with this policy.

1. Data We Collect

Account information

When you create an account or sign in, we collect:

• Email address and password (for email/password sign-in; your password is stored in hashed form).
• If you sign in with Google or Apple, we receive from the provider: email, display name, and profile photo (where made available by the provider). We use this to create or update your account in our systems.

This account data is stored in our secure database.

Usage and analytics

We use analytics services to understand how the App is used and to improve it. This may include:

• Device and app usage data (e.g., screen views, in-app actions such as starting or completing the daily game).
• User identifier (a unique ID linked to your account when you are signed in), so we can associate usage with an account for analysis.

This data is sent to:

• Google Analytics
• Mixpanel

Each of these services may collect additional data as described in their respective privacy policies. We do not control their data practices; we encourage you to review their policies.

Error and crash data

We use Sentry to help us fix errors and crashes. Sentry may receive:

• Crash and error reports (e.g., stack traces, error messages).
• Navigation breadcrumbs (screens or actions you took before an error).

We do not use performance or profiling tracing in the App; only error/crash-related data is sent to Sentry.

Feedback

If you choose to submit feedback after a session, we collect and store:

• Star rating and answers to our feedback questions.
• Free-form text you enter.

This feedback is stored in our Firestore database and is linked to your user ID and timestamp. Submission is optional.

Local preferences

We store on your device only (using local storage, not our servers):

• Language/locale preference (e.g., English or Simplified Chinese).

This data is not sent to our servers or third parties for storage.

2. How We Use Your Data

We use the information we collect to:

• Provide the App (e.g., authenticate you, show your progress, run the daily game and affirmation experience).
• Improve the App (e.g., analyze usage via Firebase Analytics and Mixpanel to improve features and design).
• Fix problems (e.g., use Sentry to diagnose and fix crashes and errors).
• Process feedback you submit (e.g., to improve content and experience).
• Communicate with you if necessary (e.g., account or security-related messages).

We do not sell your personal information to third parties.

3. Legal Basis (EU/UK)

If you are in the European Economic Area or the United Kingdom:

• We process your data where necessary for contract (providing the App), legitimate interests (analytics, error fixing, improvement), or consent where we ask for it.
• You may have the right to withdraw consent or object to certain processing. You can contact us (see Contact below) to exercise these rights.

4. Third Parties and Sharing

We use the following third-party services, which may receive or process data as described in their privacy policies:

• Google Sign-In — Purpose: Sign-in with Google. Data involved: As per Google's privacy policy.
• Apple Sign-In — Purpose: Sign-in with Apple. Data involved: As per Apple's privacy policy.
• Mixpanel — Purpose: Product analytics. Data involved: User ID, events, screen views (see Mixpanel Privacy).
• Sentry — Purpose: Error and crash reporting. Data involved: Crash/error data, breadcrumbs (see Sentry Privacy).

These providers may be located in the United States or other countries. We ensure appropriate safeguards (such as standard contractual clauses where required) for international transfers.

We do not sell your personal data. We may disclose your information if required by law or to protect our rights, safety, or property.

5. Data Retention

• Account data: We retain your account and profile data until you delete your account. When you delete your account, we remove your user document and associated account data from our systems.
• Feedback: We retain feedback (linked to your user ID) until you delete your account, after which we remove or anonymize it in line with our deletion process.
• Analytics and crash data: Retention is governed by the respective provider policies (Firebase, Mixpanel, Sentry). We do not control how long they keep data; some data may remain in their systems after account deletion.

6. Your Rights

Depending on your location, you may have the right to:

• Access the personal data we hold about you.
• Correct inaccurate data.
• Delete your data (including via Delete account in the App).
• Data portability (e.g., a copy of your data in a structured format).
• Object or restrict certain processing.
• Withdraw consent where processing is based on consent.
• Lodge a complaint with a supervisory authority in your country.

Deleting your account: In the App, go to Settings → Account Deletion and follow the steps. This will delete your account and your user document in our database. We will also remove or anonymize your feedback. Data already shared with analytics or crash-reporting providers may remain in their systems according to their policies.

7. Security

We use industry-standard measures to protect your data, including:

• Secure authentication and database access.
• HTTPS and secure connections for data in transit.
• Secure handling of credentials (e.g., hashed passwords, OAuth tokens).

No method of transmission or storage is 100% secure; we cannot guarantee absolute security.

8. Children

The App is not directed at children under 13 (or under 16 in some jurisdictions). We do not knowingly collect personal information from children. If you believe we have collected data from a child, please contact us and we will delete it promptly.

9. International Transfers

Your data may be processed in countries outside your residence (including the United States) by us or our service providers. Where required by law, we use appropriate safeguards (such as standard contractual clauses) for such transfers.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will post the updated policy in the App or at [URL if hosted]. The "Last updated" date at the top will be revised. Your continued use of the App after changes constitutes acceptance of the updated policy.

11. Contact

For privacy-related requests, questions, or to exercise your rights, contact us at:

hello@syncgarden.app