Privacy Policy

Last updated: April 5, 2026
App name: Calm Spinner
Developer: 4zr
Contact email: ajsl6539@naver.com

This Privacy Policy explains how Calm Spinner ("the App") handles user information. By using the App, you agree to the practices described in this Privacy Policy.

1. Information We Collect

The App does not require account registration and does not directly collect personal information such as your name, home address, or payment card details.

However, certain information may be processed through third-party services used by the App:

2. How We Use Information

The information processed in connection with the App may be used to:

3. Third-Party Services

The App may use the following third-party services:

These services may process information in accordance with their own privacy policies and terms.

4. Advertising

The App uses Google AdMob for advertising. AdMob may collect and process device identifiers, IP address, app interaction data, and other technical information for ad delivery, fraud prevention, and measurement purposes.

5. In-App Purchases

The App may offer digital purchases through Google Play Billing. Payment transactions are processed by Google. The developer does not directly collect or store sensitive payment information such as credit card numbers.

6. Local Game Data

The App may store gameplay-related data locally on your device, such as:

If you delete the App or clear its local data, some locally stored gameplay information may be lost, except where restoration is supported by platform or purchase systems.

7. Data Retention

Data is retained only for as long as needed to operate the App and related services. Locally stored data remains on the device until removed by the user or deleted by the App. Some platform-related purchase information may be retained by Google under Google’s own policies.

8. Children’s Privacy

The App is intended to be suitable for a broad audience, but parents and guardians are responsible for supervising children’s use of mobile devices and applications.

9. Security

Reasonable measures are used to protect data related to the App. However, no method of transmission over the Internet or electronic storage is completely secure.

10. Your Rights

Depending on your location, you may have rights regarding your data under applicable law. If you have questions about privacy or data handling, you may contact the developer using the email below.

11. Contact

Developer: 4zr
Email: ajsl6539@naver.com

12. Changes to This Policy

This Privacy Policy may be updated from time to time. Any changes will be posted on this page with an updated “Last updated” date.


Paid Random Item Probability Disclosure

If the App offers paid random draws for buffs or skins, the following probability structure applies.

Buff Draw Probability Structure

Buff draws are determined from the pool of remaining, not-yet-obtained buffs. Each buff has a weight based on its rarity tier, and the actual probability is calculated from the total weight of all remaining candidate buffs.

Current weight values:

The actual probability of receiving a specific buff depends on the player’s current remaining buff pool. For example, if the remaining pool contains:

Then the total weighted value is 2×4 + 1×2 + 1×1 + 1×0.5 = 11.5.

The values below are shown as: count ratio in the remaining pool (weighted probability)

Because both buff draws and skin draws depend on the current remaining candidate pool, the exact weighted probability of each item changes as more items are obtained.