Privacy Policy

Welcome to FLOW Timer. Your privacy is important to us. This Privacy Policy explains how we collect, use, and protect your personal information.

1. Who We Are

FLOW Timer is an interval training application developed and managed by:

2. Data We Collect

2.1 Account Data

When you create an account, we collect:

• Email - for identification and password recovery
• Username - for profile personalization
• Password - stored in encrypted form (hash)

2.2 Workout Data

To provide you with statistics and track your progress, we collect:

• Date and time of workouts
• Session duration
• Number of rounds completed
• Reaction times (reaction game)
• Type of workout performed

2.3 Technical Data

• Device type
• Operating system version
• App version
• Anonymous error logs

2.4 Subscription Data

If you subscribe to a paid plan, we additionally collect:

• Plan type — Free, Premium (Monthly/Annual), Team (Base/Pro/Unlimited), Gym (Starter/Pro/Enterprise)
• Subscription status — active, free trial, expired, cancelled
• Billing cycle dates — start, renewal, expiration
• Purchase token — transaction identifier from App Store/Play Store
• Team/Gym data — for Team and Gym plans: team ID, role (coach/athlete/trainer/member), organization name

We do not directly store credit card data or bank details. Payments are processed entirely by Apple App Store and Google Play Store.

2.5 Guest Mode

If you use the app as a guest (without an account), we do not collect any personal data. Workout data remains only on your device.

2.6 Advertising Data

The app uses Google AdMob to show ads to free users. AdMob may collect:

• Device advertising identifier (IDFA/GAID)
• Device and operating system information
• Ad interaction data
• IP address (for approximate geographic location)

You can limit personalized advertising in your device settings:

• iOS: Settings → Privacy → Advertising → Limit Ad Tracking
• Android: Settings → Google → Ads → Opt out of personalization

3. How We Use Your Data

We use the collected data to:

• Provide and improve the service
• Sync your progress across devices
• Show you workout statistics and charts
• Send you app-related notifications (if authorized)
• Resolve technical issues

4. Data Retention

Your data is stored on our secure servers as long as you maintain an active account. You can request deletion at any time.

5. Data Sharing

We do not share your personal data with third parties, except:

• Hosting providers - to store data securely
• Google AdMob - to display ads (free plan users only)
• Apple App Store / Google Play Store - for payment processing and subscription management (Premium, Team, Gym plans)
• Legal authorities - only if required by law

6. Security

We protect your data with:

• HTTPS encryption for all communications
• Passwords stored with secure hashing (bcrypt)
• JWT tokens for secure authentication
• Limited database access

7. Your Rights (GDPR)

You have the right to:

• Access - request a copy of your data
• Rectification - correct inaccurate data
• Erasure - request account and data deletion
• Portability - receive your data in a readable format
• Objection - object to data processing

To exercise these rights, contact us at the email below.

8. Cookies and Similar Technologies

The mobile app does not use cookies. The website may use essential technical cookies for proper functioning.

9. Children

The app is not intended for children under 13 years old. We do not knowingly collect data from children under 13.

10. Changes to Privacy Policy

We may update this policy periodically. We will notify you of significant changes through the app or email.

11. Contact Us