App Privacy Policy
This policy applies to all apps published by the developer furukawa.
This Privacy Policy applies to all mobile applications published by the developer furukawa ("we", the "App") on Google Play and the App Store. Every app we publish on those stores handles user information in accordance with this policy.
This policy describes practices common to several of our apps. Which of the features below are present depends on the individual app, and where a feature is absent, the related information is not collected.
1. Information we do not collect
The App does not collect personally identifiable information such as your name, address, phone number, email address or location. There is no account registration, and no information about you is sent to any server operated by us.
2. Information collected by third-party services
2-1. Advertising (Google AdMob)
Apps that show advertising use Google AdMob (provided by Google LLC), in banner, interstitial or rewarded video formats depending on the app. AdMob may use cookies and an advertising identifier (Android Advertising ID / iOS IDFA), your IP address and device information in order to deliver and measure ads.
You can disable personalised advertising in your device settings (Android: Settings → Google → Ads / iOS: Settings → Privacy & Security → Tracking). On iOS, an app may ask for permission to use the advertising identifier (IDFA). You may decline; the app remains fully usable, and ads simply become less relevant.
Where an app offers a paid ad-free version, no ads are displayed and no ad requests are made after purchase.
2-2. In-app purchases (Google Play / App Store)
Apps offering paid versions or additional features use in-app purchases. Purchases are processed by the Google Play (Google LLC) and App Store (Apple Inc.) billing systems. Payment details such as card numbers, names and addresses are handled entirely by those stores, and are never received, viewed or stored by us.
We handle only whether a purchase has completed.
- When a purchase completes, that fact is recorded on your device only, and is not transmitted anywhere.
- Restoring a purchase on a new device or after reinstalling queries the store's purchase history. Authentication happens with your store account, and we do not obtain your account details.
- Cancellations and refunds are governed by each store's terms. We cannot process refunds ourselves.
2-3. Crash reporting (Firebase Crashlytics)
Some apps use Firebase Crashlytics to investigate defects and improve quality. In those apps, a crash automatically sends a stack trace, the device model, OS version and app version, the state of the device at the time of the crash, and a per-installation identifier that does not identify you personally.
This information is used only to fix defects and for no other purpose. See Firebase Privacy and Security for details.
The Data safety section on each app's Google Play listing states what that particular app collects.
3. Data stored on your device
The following may be stored only on your device, and is never transmitted to us or to any third party. Which items are stored depends on the app.
- In-app settings such as sound, language and notifications
- Whether you have seen a tutorial
- Usage counts (used for purposes such as pacing ad frequency)
- Your paid-version purchase state
Uninstalling the app deletes this data.
4. Device permissions
Apps may use device permissions solely to provide their features, never to collect or transmit your information. Required permissions differ by app.
- Notifications: to show remaining time or notices in the notification area.
- Device administrator (Android only, optional): used only by apps with a screen-off feature, and only for that purpose. It is never used to read data on your device, is not used unless you grant it, and can be revoked at any time in Android settings.
5. Sharing of data with third parties
We do not collect personal information, and therefore do not share any with third parties. Information handled by the services described in section 2 is governed by those services' own privacy policies.
6. Children's privacy
Our apps are intended for all ages. We do not knowingly collect personal information from children.
7. Disclaimer
We accept no responsibility for services or information provided by advertisements shown in our apps or by the sites they link to. Please use them at your own discretion and risk.
8. Changes to this Privacy Policy
The contents of this Privacy Policy may be revised in response to legal changes or new app features. Significant changes will be announced on this page.
9. Contact
For questions about this policy or about the apps we publish, please contact us at:
furukawa (developer)
furukawa57.inc@gmail.com