Privacy Policy

This Privacy Policy describes how Island ("we", "us", or "our") collects, uses, and shares information when you use the Island mobile application (the "App"). By downloading, installing, or using the App, you agree to the collection and use of information in accordance with this Privacy Policy.

We are committed to protecting your privacy and being transparent about how your information is handled. Island is designed with privacy as a core principle — your productivity data stays on your device, and we only collect what is necessary to provide and improve the App experience.

1. Information We Collect

1.1 Information Stored Locally on Your Device

The following data is created and stored exclusively on your device using local storage. This data is never transmitted to our servers or any third party:

• Focus session history and duration records
• Island progress, decorations, and unlocked content
• Island Coin balance and transaction history within the App
• Timer settings and preferences
• White noise and ambient sound preferences
• Visual calendar data and streak records
• App theme and display preferences

You have full control over this data. It can be deleted at any time by clearing the App's data in your device settings or by uninstalling the App. For detailed instructions, please visit our Data Deletion Guide.

1.2 Onboarding Information

When you first use Island, you may voluntarily provide certain information during the onboarding process, including:

• Your chosen display name
• Your self-reported difficulty focusing due to screen time
• Your estimated average daily screen time

This information is securely stored using Google Firebase services. The onboarding information may be used to:

• Personalize your Island experience
• Improve product features and user experience
• Conduct internal analytics and product development
• Support future improvements and potential academic or scientific research related to productivity and digital well-being

Any research usage will be based on anonymized and aggregated data only. Island does not sell personal data.

1.3 Information Collected Through Third-Party Services

The App integrates with third-party services provided by Google. These services may collect certain information automatically as described below. We do not have direct access to the raw data collected by these services beyond the aggregated reports and analytics they provide.

2. Third-Party Services

Island uses the following third-party services. Each service has its own Privacy Policy governing the collection and use of information. We encourage you to review these policies.

2.1 Google Play Services

Google Play Services is a core component required for the App to function on Android devices. It may collect device information, usage data, and unique identifiers. For more information, see the Google Privacy Policy.

2.2 Firebase Authentication (Google Sign-In)

Island offers optional sign-in via Google Sign-In, powered by Firebase Authentication. When you choose to sign in, we may receive the following information from your Google account:

• Display name
• Email address
• Profile photo URL
• Unique user identifier (UID)

This information is used solely for authentication purposes and to personalize your experience within the App. We do not sell, share, or distribute your Google account information to any third party.

Island may also use Firebase Firestore or related Firebase database services to securely store onboarding data and account-related information when users sign in. This data is handled in accordance with Google's security standards and is used solely to provide and improve the App experience.

For more information, see the Firebase Privacy Policy.

2.3 Google Analytics for Firebase

We use Google Analytics for Firebase to understand how users interact with the App. This service collects anonymous usage data, including:

• App opens and session duration
• Screen views and navigation patterns
• Device type, operating system version, and country
• Crash and error event data

This data is collected in aggregate form and does not personally identify you. It is used exclusively to improve the App's features, performance, and user experience.

Aggregated onboarding insights (such as general screen time trends or focus difficulty patterns) may also be analyzed internally to improve Island's focus systems. These analyses do not identify individual users.

For more information, see the Firebase Privacy Policy.

2.4 Firebase Crashlytics

Firebase Crashlytics is used to collect crash reports and diagnostic information when the App encounters an error. Data collected may include:

• Crash stack traces and error logs
• Device state at the time of crash (memory, storage, battery)
• Device model and operating system version
• Crashlytics installation UUID

This data is used solely to identify, diagnose, and resolve technical issues in order to improve App stability. For more information, see the Firebase Privacy Policy.

2.5 Google AdMob

Island displays advertisements through Google AdMob. AdMob may collect and use data to serve personalized or non-personalized advertisements, including:

• Advertising ID (can be reset or opted out in device settings)
• Device information and approximate location
• Ad interaction data (impressions, clicks)

You may opt out of personalized advertising by adjusting your device's ad settings. For more information, see the Google Privacy Policy and the AdMob Privacy & Data Disclosure.

2.6 Google Play Billing

All in-app purchases within Island — including Island Coin bundles and ad removal — are processed entirely through Google Play's billing system. We do not collect, store, or have direct access to your payment information, including credit card numbers, billing addresses, or financial account details. All payment processing is handled securely by Google Play. For more information, see the Google Payments Privacy Notice.

3. How We Use Your Information

We use the information described above for the following purposes:

• To provide and maintain the core functionality of the App
• To authenticate your identity when you choose to sign in with Google
• To process in-app purchases via Google Play Billing
• To display advertisements through Google AdMob
• To analyze anonymous usage patterns and improve the App's features, performance, and user experience
• To identify and fix technical issues, crashes, and bugs
• To comply with legal obligations and enforce our Terms & Conditions

4. Data Sharing and Disclosure

We do not sell, rent, or trade your personal information to third parties. Information may be shared only under the following limited circumstances:

• With third-party service providers as described in Section 2 (Google Play Services, Firebase, AdMob), solely for the purposes of providing App functionality, analytics, crash reporting, and advertising.
• As required by law, including to comply with a legal obligation, protect and defend our rights or property, prevent fraud, or protect the personal safety of users.

5. Data Retention

Locally stored data (focus sessions, island progress, preferences) is retained on your device until you clear the App's data or uninstall the App. We do not maintain copies of this data on any server.

Data collected through third-party services (Firebase Analytics, Crashlytics, AdMob) is retained according to each service provider's data retention policies. Google's default retention period for analytics data is 14 months, after which it is automatically deleted. Crash reports are retained for 90 days.

Onboarding data stored in Firebase may be retained for as long as necessary to maintain user accounts and improve the application experience. Users may request deletion of their account-associated data via the Contact page.

6. Data Security

We take the security of your information seriously. Locally stored data is protected by your device's built-in security features (lock screen, encryption). Communications between the App and third-party services are transmitted over secure, encrypted connections (HTTPS/TLS).

However, please be aware that no method of electronic storage or transmission over the Internet is 100% secure. While we strive to use commercially acceptable means to protect your information, we cannot guarantee its absolute security.

7. Children's Privacy

Island is not directed at children under the age of 13. We do not knowingly collect personally identifiable information from children under 13. If we discover that a child under 13 has provided us with personal information, we will take steps to delete such information promptly. If you are a parent or guardian and believe your child has provided us with personal information, please contact us so that we can take appropriate action.

8. Your Rights and Choices

You have the following rights regarding your information:

• Delete local data: You can delete all locally stored data at any time by clearing the App's data in your device settings or by uninstalling the App.
• Opt out of personalized ads: You can opt out of personalized advertising by adjusting your device's advertising settings or resetting your Advertising ID.
• Revoke Google Sign-In: If you have signed in with Google, you can revoke access at any time through your Google Account settings under "Third-party apps & services".
• Request data deletion: For any data deletion requests beyond local data, please contact us using the information provided below.

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in our practices, third-party services, or applicable laws. When we make changes, we will update the "Last updated" date at the top of this page. We encourage you to review this Privacy Policy periodically for any changes. Your continued use of the App after any modifications to this Privacy Policy constitutes your acceptance of such changes.

10. Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us through our Contact page.