Privacy Policy for Interval Timer

Effective Date: April 2, 2026

Interval Timer ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and disclose information when you use our mobile application.

1. Information We Collect

1.1 Information Stored on Your Device

The app stores workout-related data locally on your device so the timer works properly. This may include:

• Custom workouts: workout names, intervals, colors, sounds, and timer settings.
• Workout history: completed sessions, duration, and streak-related history.
• App preferences: favorites, sound settings, countdown preferences, and theme preferences.

1.2 Account and Sync Information

If you choose to sign in, we use Firebase Authentication to manage your account. Sign-in options may include Google, Apple, or email and password.

If you are signed in, your custom workouts may be synced to your account using Firebase Firestore so they can be restored across devices.

1.3 Information Collected Automatically by Third Parties

We use third-party services that may collect certain information automatically, such as device and app usage data. These services may include:

• Google Play Services: used for core platform functionality.
• Firebase Authentication: used for account sign-in and account management.
• Firebase Firestore: used to sync workout data when you choose to sign in.
• Firebase Analytics: may be used to understand app usage and improve the app.
• Google AdMob: used to display ads. AdMob may collect information such as advertising identifiers and device data to show personalized or non-personalized ads.

2. How We Use Your Information

We use the information we collect to:

• Provide and maintain the timer, workout builder, and workout history features.
• Save your settings and preferences.
• Sync your custom workouts across devices when you sign in.
• Improve app performance and reliability.
• Display ads and measure app usage.
• Respond to support requests and feedback.

3. Notifications and Background Timer

On Android, the app may request notification permission so an active workout can continue while the app is in the background. This notification can show timer controls such as pause, resume, or skip. These are local app notifications used for timer functionality.

4. Data Sharing

We do not sell your personal information. We may share information with service providers only to the extent needed to operate the app, including Google and Firebase services used for authentication, syncing, analytics, and advertising.

5. Your Choices

• Use without an account: you can use the app in a local or guest-style mode without signing in.
• Manage synced data: if you sign in, custom workouts may be synced to the cloud. Deleting workouts while signed in may also remove them from your synced account data.
• Manage ads: you can manage ad preferences through your device settings, such as Android advertising settings or iOS tracking/privacy settings.
• Clear local data: you can remove locally stored data by clearing the app's storage or uninstalling the app.

6. Data We Do Not Intentionally Request

Interval Timer does not require access to your contacts, photos, camera, or microphone for its core functionality.

7. Children's Privacy

Our app is intended for a general audience. We do not knowingly collect personally identifiable information directly from children under 13.

8. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will post any updated version on this page, and the new policy will become effective when posted.

9. Contact Us

If you have any questions about this Privacy Policy, please contact us at: support@differapps.com