Privacy Policy

Color Vision Test – Ishihara Color Blindness Screening App

Effective Date: April 9, 2026

This privacy policy describes how Color Vision Test ("we", "our", or "the app") collects, uses, and protects information when you use our mobile application. We are committed to protecting your privacy and being transparent about our practices.

1. Information We Collect

1.1 Information We Do NOT Collect

We do not collect any personally identifiable information (PII) such as:

  • Name, email address, or phone number
  • Location data
  • Photos, contacts, or files
  • Account credentials or payment information

1.2 Locally Stored Data

Your test results (score, date, and diagnosis) are stored locally on your device only using shared preferences. This data is never transmitted to any server. You can delete this data at any time using the "Clear History" option within the app, or by uninstalling the app.

1.3 Automatically Collected Analytics Data

We use Firebase Analytics (provided by Google) to collect anonymous, aggregated usage data to help us understand how the app is used and improve the user experience. This may include:

  • App opens and session duration
  • Screen views and navigation patterns
  • Test completion events (score and diagnosis, without any user identifiers)
  • Device type, operating system version, and app version
  • Crash reports and performance data

This data is aggregated and anonymized. It cannot be used to identify individual users.

2. Advertising

This app displays advertisements provided by Google AdMob. Google AdMob may use cookies, device identifiers (such as the Android Advertising ID), and other technologies to serve ads. Depending on your device settings and consent choices, ads may be personalized or non-personalized.

For more information about how Google collects and uses data for advertising purposes, please visit:

3. Third-Party Services

This app uses the following third-party services, each with their own privacy policies:

ServicePurposePrivacy Policy
Google AdMobDisplaying advertisementsLink
Firebase AnalyticsAnonymous usage analyticsLink

4. Data Retention

Local test history is retained on your device until you manually clear it or uninstall the app. Analytics data collected by Firebase is retained according to Google's data retention policies.

5. Data Security

Since we do not collect or store personal data on any server, the risk of a data breach from our end is minimal. Local data on your device is protected by your device's built-in security features (screen lock, encryption, etc.).

6. Children's Privacy

This app is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided personal information through this app, please contact us so we can take appropriate action.

7. Your Rights and Choices

You have the following options regarding your data:

Delete local data:Use the "Clear History" button in the app's Test History screen
Opt out of personalized ads:Adjust your device's ad settings or visit Google Ads Settings
Opt out of analytics: Disable usage and diagnostics sharing in your device settings
Remove all data: Uninstalling the app removes all locally stored data

8. Changes to This Privacy Policy

We may update this privacy policy from time to time to reflect changes in our practices or for legal, regulatory, or operational reasons. Any changes will be posted on this page with an updated effective date. We encourage you to review this policy periodically.

9. Contact Us

If you have any questions, concerns, or requests regarding this privacy policy or our data practices, please contact us at:

This app is developed by Fishtail Games.