Privacy Policy
Language: JapaneseEnglish
This app does not collect any personal information. No account is required. Learning history is stored only on your device and is never transmitted to external servers. No LLM (generative AI) is used.
1. Scope
This Privacy Policy ("Policy") applies to the mobile application "Piyo Learn" (appId: jp.piyo.learn, the "App") provided by Piyo Health ("we", "us").
The web version of this app, and other related products (such as Piyo Nurse, Piyo Search), are governed by their own separate privacy policies.
2. Information We Do Not Collect
The App does not collect any of the following:
- Contact information (name, email address, phone number, postal address)
- Demographic information (date of birth, age, gender)
- Health information, medical records, or patient health information (PHI)
- Location data (including GPS and IP-based geolocation)
- Device or advertising identifiers (IDFA, AAID, etc.)
- App activity (interaction logs, screen transitions, search queries)
- Contacts, photos, camera, microphone, or file access
- Credentials or API keys for any third-party services
- Crash logs or diagnostic data (not collected in v1.0.0)
3. Information Stored Locally on Your Device
The App stores the following data only on your device. None of this data is transmitted externally.
- Learning progress (answer history, review schedule, case selection history)
- App display preferences (text size, theme)
This data is deleted when you uninstall the App.
4. Third-Party Sharing
We do not collect data and therefore do not share data with any third party.
The App does not use:
- Third-party analytics SDKs (Google Analytics, Firebase Analytics, etc.)
- Advertising SDKs (AdMob, etc.)
- Crash reporting SDKs (Crashlytics, etc.)
- Social login providers
- External LLM (generative AI) APIs (OpenAI, Anthropic, Google Gemini, etc.)
5. Network Communication
The App connects to the internet only:
- During initial download via App Store / Google Play
- During app updates via App Store / Google Play
After launch, the App operates offline for all learning activities. No learning data is transmitted.
6. Cookies and Tracking
The App is a native application and does not use cookies. No advertising tracking or cross-site tracking is performed.
7. Children's Privacy
The intended audience of the App is nurses and nursing students (typically 18 years or older). The App is not distributed as a "kids" app and does not collect information from children under 13.
8. Your Rights
Because the App does not collect any personal information, there is no personal data subject to access, correction, or deletion requests.
You may delete the on-device learning data at any time by uninstalling the App or by using the reset function in App Settings.
9. Security Measures
Although no personal information is collected, the following measures apply to on-device learning data:
- Learning data is stored using the standard local storage mechanism of the device's operating system
- Access is gated by the device lock and the operating system's security model
- No implementation path for external transmission exists
10. Changes to This Policy
If we change this Policy, we will provide notice within the App and on our website. For material changes, we will additionally provide an in-app notification.
Revision history:
- 2026-05-26 Initial version (v1.0.0 First Release Pack)
11. Contact
For questions about this Policy, please contact us:
- Email:
piyohealth.support@gmail.com - In-App: Settings → Contact
12. Governing Law
This Policy is governed by the laws of Japan. The Tokyo District Court has exclusive jurisdiction as the court of first instance for any disputes arising from this Policy.