Privacy Policy
Last updated: March 22, 2026
Introduction
Lumithick Studio (“we”, “us”) respects your privacy and is committed to protecting your personal information. This Privacy Policy explains what information is collected by “Byoyomi-kun” (the “App”) and how it is handled.
Information Collection and Use
We do not transmit or store any personal information on our own servers. App settings (time settings, color themes, voice preferences, etc.) are stored locally on your device only.
However, this App uses the Google AdMob SDK for advertising, and the following information may be automatically collected through the AdMob SDK:
- Advertising identifiers (IDFA / GAID)
- Device information (model, OS version, language settings, etc.)
- Approximate location (based on IP address, etc.)
- App interaction data (ads displayed, clicks, etc.)
- Diagnostic information (crash logs, performance data, etc.)
This data is used for ad optimization (personalized ad delivery), ad performance measurement, and fraud prevention.
For details on how this information is handled, please refer to How Google uses information from sites or apps that use our services.
You can control personalized advertising through your device’s advertising settings.
If you remove ads through an in-app purchase, ad requests and related data transmission by the AdMob SDK will be stopped.
In-App Purchases
The App offers an in-app purchase to remove advertisements. Payment processing is handled by Apple (App Store) or Google (Google Play). We do not directly handle any payment information.
Data Retention and Deletion
We do not store any user data on our own servers. The retention and deletion of data collected by AdMob is governed by Google’s Privacy Policy.
App settings stored locally on your device will be deleted when the App is uninstalled.
Children’s Privacy
The App does not knowingly collect personal information from children under the age of 13.
Your Rights
If you are a resident of the EEA (European Economic Area) or California, you have the right to request access to, correction of, or deletion of your personal data under applicable laws (such as GDPR and CCPA/CPRA). To exercise these rights, please contact us using the information below.
Changes to This Policy
This Privacy Policy may be updated from time to time. Any changes will be posted on this page.
Contact Us
If you have any questions or concerns about this Privacy Policy, please contact us at: