This Privacy Policy describes how user information is handled in this application (hereinafter referred to as "the App"), "Sanshin Tuner".
The App uses the following external services to obtain and use information. Information obtained from users through the App may be automatically collected through the SDK (Software Development Kit) of each service and sent to and stored on the respective company's servers.
The App uses the device's microphone to capture audio in order to analyze the sound of the instrument and perform tuning. This audio data is used only for real-time analysis within the device and is never sent to or stored on the developer's server or any external services.
The App uses "Google AdMob" to provide services for free and to offer Pro features for a limited time (rewarded ads). Banner ads, app open ads, and rewarded ads may be displayed in the App. AdMob may collect and share device identifiers (such as Advertising IDs) to display ads tailored to users, measure ad effectiveness, and prevent fraud.
The App uses Google Firebase (Analytics / Crashlytics) to improve quality and fix bugs. This allows the App to collect in-app operation logs, diagnostic data during crashes, and device identifiers in a statistical format.
The App uses "RevenueCat" to process and manage subscriptions. RevenueCat collects and uses in-app purchase information (purchase history, App User ID from the store, etc.) to verify purchases, determine entitlements, and sync subscription status. Information collected is not used to directly identify individuals.
As the App does not have a user account creation feature, it does not hold information that directly identifies a specific individual. For data collected by external services (Firebase / AdMob / RevenueCat) used by the App, collection can be stopped by uninstalling the App. If you wish to delete the data, please reset the Advertising ID from your device settings.
The App utilizes the following permissions. These permissions will not be used for any purpose other than those described below.
The tuning accuracy provided by the App may be affected by the surrounding noise environment and microphone performance. The developer accepts no responsibility for any instrument damage, loss, or disadvantage resulting from the use of the App.
For any requests or inquiries regarding the App, please contact us at the following email address:
Email: kakiflower@gmail.com