Privacy Policy
DOREMI K.K. ("we", "us") sets out below how user information is handled in the mobile game Cosmo Merge (the "App").
1. Information we collect and why
The App obtains information through the third-party services listed below. We do not collect information that directly identifies you, such as your name, postal address, phone number, or email address.
| Service | Information obtained | Purpose |
|---|---|---|
| Google AdMob (advertising) | Advertising identifier (IDFA on iOS, only if you allow tracking; Advertising ID on Android), IP address, device information | Serving, measuring, and protecting against fraud in advertising |
| Firebase Analytics | In-app events, usage data, an anonymous app instance identifier | Understanding how the game is played so we can improve it |
| Firebase Crashlytics | Crash logs, device model, OS version | Detecting and fixing defects |
For details on these services, please see the Google Privacy Policy. Information collected through them is processed by Google and may be transferred to and stored in the United States and other countries.
2. In-app purchases
Purchases are processed by Apple or Google. We never receive your payment details, such as credit card information. Your purchase state (for example, Premium) is stored on your device.
3. Game Center and Google Play Games
Leaderboards and achievements are provided through Apple's Game Center (iOS) or Google Play Games Services (Android). Submission and display of scores are governed by Apple's or Google's respective privacy policies.
4. Save data
Your game save data is stored only on your device and is never sent to our servers. Deleting the App deletes your save data with it.
5. Tracking permission
On iOS, the App asks for tracking permission under App Tracking Transparency before the first ad is shown. You can use every feature of the App whether or not you allow it — only the personalization of the ads you see changes. You can change your choice at any time in iOS Settings → Privacy & Security → Tracking. On Android, you can reset or delete your Advertising ID, or opt out of ads personalization, in the device Settings → Google → Ads.
6. Children's information
The App is not directed to children under 13, and we do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided us with information, please contact us at the address below and we will delete it.
7. Data deletion
Save data on your device is erased when you delete the App. You can reset your advertising identifier in your device settings. For requests regarding analytics data, please contact us at the address below.
8. Your U.S. state privacy rights
This section applies to residents of California and of other U.S. states with comprehensive privacy laws. In the preceding 12 months, we have obtained the categories of information described in Section 1 — identifiers (advertising identifiers, IP address), internet or other electronic network activity information (in-app events, crash logs), and device information — from you through your use of the App, for the purposes described there.
- We do not sell your personal information for money, and we do not knowingly sell or share the personal information of consumers under 16 years of age.
- When you allow tracking and personalized advertising is enabled, the use of your advertising identifier for advertising may qualify as "sharing" for cross-context behavioral advertising, or as processing for "targeted advertising", under California and other U.S. state privacy laws. You can opt out at any time by turning off tracking for Cosmo Merge in iOS Settings → Privacy & Security → Tracking, or by opting out of ads personalization in your Android device settings. You may also email us at the address below to submit an opt-out request.
- Subject to applicable law, you have the right to know what personal information we have obtained about you, to request its deletion or correction, and to appeal a decision on your request. To exercise any of these rights, email us at [email protected]. We may need information to verify your request; because the App does not use accounts, verification is generally based on the device information you provide.
- We do not discriminate against you for exercising any of these rights. An authorized agent may submit a request on your behalf with proof of authorization.
We do not process sensitive personal information, and we do not use personal information for profiling in furtherance of decisions that produce legal or similarly significant effects.
9. Changes to this policy
We may update this policy as needed. If a material change is made, we will announce it on this page.
10. Contact
DOREMI K.K.
[email protected]
Effective: July 23, 2026 (English version published September 6, 2026)
This is a translation of our Japanese privacy policy, provided for convenience. Except where U.S. state law requires otherwise, the Japanese version governs in the event of any discrepancy.