Privacy Policy

1. Overview

Astroah Inc. ("we", "us", or "our") operates the mobile and web game Find Difference with AI (the "App"). This Privacy Policy explains what information we collect, how we use it, and the choices you have.

You can play the core spot-the-difference game without creating an account. Some optional features—such as submitting your own images to create puzzles—require signing in and involve sending data to our servers. This policy describes both cases.

2. Information We Collect

2.1 Information Stored Locally on Your Device

To provide gameplay, the App stores certain data locally on your device. This includes:

• Game progress and best clear times
• Play hearts (energy) balance and refill timers
• Language preference and other in-app settings

This data stays on your device and is removed when you uninstall the App.

2.2 Account Information (optional — only when you sign in)

If you use the "Create your own puzzle" feature, you sign in with Google using Firebase Authentication. In that case we receive and store:

• A unique account identifier (user ID)
• Your email address and display name associated with your Google account

We use this only to associate your submissions with your account and to keep your submissions private to you. (On the Apps in Toss version of the App, an anonymous Toss-provided key is used instead of Google sign-in, and no email is collected.)

2.3 Content You Submit

When you upload an image through the submission feature, the original image and related metadata (such as title, image dimensions, and submission status) are transmitted to and stored on our servers so that we can review it and, if appropriate, turn it into a game stage. Please do not upload images that contain personal, sensitive, or confidential information.

2.4 Advertising and Analytics Data

The App displays advertisements and uses analytics to understand app performance. Through the third-party services listed in Section 4, the following types of data may be collected automatically:

• Advertising identifier and device/usage information used to serve and measure ads
• App usage events, approximate device information, and diagnostic/crash data

3. How We Use Information

We use the information described above to:

• Provide, maintain, and improve the App and its features
• Save your progress, settings, and heart (energy) status
• Enable the puzzle submission feature and review submitted content
• Display and measure advertisements
• Analyze usage and diagnose technical problems
• Protect against fraud, abuse, and violations of our Terms

4. Third-Party Services

The App relies on the following third-party services, which may process data as described in their own privacy policies:

Service	Purpose	Privacy Policy
Google Firebase (Authentication, Analytics)	Optional sign-in, usage analytics, diagnostics	firebase.google.com/support/privacy
Google AdMob	Advertising	policies.google.com/privacy
Cloudflare	Backend hosting and image storage	cloudflare.com/privacypolicy

We do not sell your personal information.

5. Information Sharing and Disclosure

We do not share your personal information with third parties except:

• With the service providers listed above, to the extent needed to operate the App
• When required by law, legal process, or to protect the rights, safety, and property of our users or us
• In connection with a business transfer (e.g., merger or acquisition), subject to this Privacy Policy

6. Data Retention

Locally stored game data remains on your device until you clear it or uninstall the App. Account information and submitted content are retained while your account is active or until you delete them. You can delete a pending submission directly in the App, and you may request deletion of your account data by contacting us (see Section 12).

7. Your Rights and Choices

• Access, correction, and deletion: You may request access to, correction of, or deletion of your personal information by contacting us.
• Submissions: You can view and delete your own submissions within the App.
• Advertising choices: You can limit ad personalization through your device settings (e.g., "Limit Ad Tracking" on iOS or "Opt out of Ads Personalization" on Android) and reset your advertising identifier.
• Sign out: You can sign out at any time; core gameplay does not require an account.

8. Children's Privacy

The App is not directed to children under the age of 13 (or the minimum age required in your country), and we do not knowingly collect personal information from them. If you believe a child has provided us with personal information, please contact us and we will take appropriate steps to delete it.

9. Advertising

The App uses Google AdMob to display advertisements. AdMob may use device identifiers and usage data to serve personalized or non-personalized ads and to measure ad performance. For more information and controls, see Google's Advertising and Privacy policies.

10. Data Security

We use reasonable technical and organizational measures—including encrypted connections and access controls—to protect information. However, no method of transmission or storage is completely secure, and we cannot guarantee absolute security.

11. International Data Transfers

Our service providers may process and store data on servers located in countries other than yours. Where we transfer information internationally, we take steps to ensure it is handled in accordance with this Privacy Policy and applicable law.

12. Contact Us

If you have any questions or requests regarding this Privacy Policy or your data, please contact us:

• Email: help@astroah.com

13. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will post the updated version on this page and revise the "Effective Date" above. Your continued use of the App after changes take effect constitutes acceptance of the updated policy.

14. Consent

By using the App, you consent to this Privacy Policy.