Last updated: June 23, 2026
The operator of the App (hereinafter referred to as "the Operator") establishes this Privacy Policy (hereinafter referred to as "this Policy") regarding the handling of users' personal information in the smartphone application "Koe Album" (hereinafter referred to as "the App").
By downloading and using the App, users are deemed to have agreed to this Policy. This Policy complies with the Act on the Protection of Personal Information and other applicable laws and regulations. In the event of any conflict between this Policy and applicable laws, the laws shall prevail.
The App collects the following information.
The collected information is used solely for the following purposes.
Audio data is sent to the Google Gemini API for AI transcription. This includes children's voices recorded through the App. Transcription text is also used for weekly summary generation.
The Operator does not use users' audio data or transcription data for AI model training purposes. We have also confirmed that the third-party providers listed in Article 5 will not use user data for AI model training.
Processed transcription text and summaries are stored in the Supabase database.
The App transmits users' information to the following third-party providers. Please also review each provider's privacy policy.
| Provider | Location | Purpose | Information Shared | Privacy Policy |
|---|---|---|---|---|
| Google LLC (Gemini API) |
California, USA | Audio transcription & summary generation | Audio data (base64 format), transcription text | Google Privacy Policy |
| Google LLC (Firebase) |
California, USA | Authentication, crash analytics, behavioral analytics, push notifications | User ID, device information, usage logs, crash logs, push notification tokens | Google Privacy Policy |
| Google LLC (AdMob) |
California, USA | Ad delivery and measurement | Advertising identifiers (IDFA/GAID), IP address, device information, usage data | Google Privacy Policy |
| Supabase, Inc. | USA | Database, storage, and server-side processing | Audio files, photos, and general user data | Supabase Privacy Policy |
| RevenueCat, Inc. | California, USA | Subscription management and billing | User ID, purchase history, subscription status | RevenueCat Privacy Policy |
| Functional Software, Inc. (Sentry) |
California, USA | Error and crash reporting, incident response | Crash logs, error stack traces, device information, OS version | Sentry Privacy Policy |
The App may deliver personalized advertisements through Google AdMob. Advertising identifiers (IDFA on iOS, GAID on Android) are used for ad delivery and measurement.
On iOS devices, a dialog requesting tracking permission will be displayed at first launch. Even if you decline, the App's core features remain fully available; however, ads will no longer be personalized.
You can reset your advertising identifier or limit ad tracking at any time through your device settings.
User data is stored on cloud servers managed by Supabase. All communications are protected by SSL/TLS encryption.
Data is retained until the user deletes their account. Upon account deletion, all data associated with that user will be deleted, including database records (audio metadata, transcription text, summaries, etc.) and cloud storage files (audio files and photos).
The third-party providers used by the App (see Article 5) are located in the United States. User information may therefore be transferred outside Japan (primarily to the United States). The Operator confirms that appropriate safety management measures are in place under contracts with each provider.
Users have the following rights regarding their personal information.
Audio data and photos can be deleted directly within the App. Account deletion is available from the App's settings screen. For other requests or inquiries, please contact us through the inquiry form below.
Please note that disclosure may not be possible in certain cases as permitted by law. We will notify you if this is the case.
The Operator takes the following safety management measures to prevent leakage, loss, or damage of user information.
The App is designed for parents to record parenting memories. Children's personal information (voice, nickname, date of birth, photos, etc.) is registered and managed under the responsibility of the parent or guardian.
Children's audio data is sent to the Google Gemini API for AI transcription (see Articles 4 and 5), but is not used for AI model training.
The Operator will not use children's personal information for purposes beyond those stated in this Policy without the consent of the parent or guardian.
This Policy may be revised in response to changes in laws or service content. In the event of significant changes, users will be notified via in-app notification or by updating the date on this page. Continued use of the App after changes constitutes acceptance of the revised Policy.
For questions or requests regarding the handling of personal information, please use the form below.
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