PRIVACY POLICY
Last Updated: February 2026
1. Introduction
Welcome to Chronize. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Chronize mobile application and website (collectively, the "Service").
Please read this Privacy Policy carefully. By accessing or using the Service, you acknowledge that you have read, understood, and agree to be bound by all the terms of this Privacy Policy and our Terms of Use.
2. Who We Are
Chronize is a mobile application that encourages physical activity by requiring users to perform exercises (such as pushups) in order to earn screen time on selected applications.
Our contact information:
• Email: support@chronize.app
3. Information We Collect
3.1 Information You Provide to Us
- Account Information: When you register for an account via our API services, we collect information necessary to set up and maintain your account, such as your email address, name, and other identifying information provided through third-party authentication services (e.g., Google, Apple).
- User Content: Information you provide when using the Service, such as profile information or content you share if you use social features.
3.2 Information We Collect Automatically
- Usage Data: Information about your activity on the Service, including:
- Exercise data (pushup counts, other exercise metrics) - see Section 3.3
- Streak information and Time budget usage
- Historical statistics of exercises performed
- Session duration and frequency
- Device Information: Information about your mobile device and internet connection, including device type, operating system, unique device identifiers, mobile network information, and IP address.
- App Usage Information: Through the Screen Time API (FamilyControls) on iOS and equivalent on Android, we collect information to manage time you spend on various shielded applications. We do not collect information about specific content viewed within those applications.
3.3 Face Data and Exercise Detection
How We Use Camera Data: Chronize uses your device's camera to detect exercises (such as pushups) through local Machine Learning pose detection. This feature is essential to verify exercise completion to earn screen time.
Data Collection and Storage: All detection and video processing occurs entirely on your device.
- We do not collect, store, or retain any video/image data: Data is processed in real-time on your device and the memory frame is immediately discarded. We do not retain any images or biometric identifiers.
- No video recordings are stored: No video recordings are created or stored on your device or our servers.
- Offline tracking: Only the final exercise count (a simple number) is sent to our servers/saved to your account.
3.4 Information from Third Parties
We may receive information about you from third-party services when you choose to connect your account with those services (such as Google or Apple for authentication).
4. How We Use Your Information
We use the information we collect for the following purposes:
- To provide, maintain, and support the Service
- To create and manage your account
- To track and process subscriptions and payments
- To track display your exercise statistics and time budgets
- To improve and personalize the user experience
- To analyze usage patterns and optimize our API
- To detect, investigate, and prevent fraudulent transactions
- To comply with legal obligations
5. Data Sharing and Disclosure
We may share your personal information with:
- Service Providers: For database hosting, payment processing, subscription management, and analytics (e.g. Supabase, Superwall, Google Analytics/Crashlytics).
- Legal Requirements: If required to do so by law or valid requests by public authorities.
- Business Transfers: If we are involved in a merger, acquisition, or sale of assets.
- With Your Consent: When we have your explicit consent to do so.
6. Social Features
While we plan to introduce social features in the future that may allow you to connect with friends, these features will be governed by additional privacy controls when implemented.
7. Data Retention
We retain your personal information for as long as your account is active. If you delete your account, we will delete or anonymize your personal information, prioritizing your privacy.
8. Data Security
We implement appropriate technical and organizational measures to protect your personal information. However, no method of transmission over the Internet is 100% secure.
9. Children's Privacy
The Service is intended for users aged 13 and older. We do not knowingly collect personally identifiable information from children under 13.
10. Your Data Protection Rights
Depending on your region, you have the right to Access, Rectification, Erasure, Data Portability, and Restriction of processing of your personal data. To exercise these rights, contact us.
11. Contact Us
If you have any questions about this Privacy Policy, please contact us at support@chronize.app.