Privacy Policy
Last updated: May 2, 2026
Fuji Bit Inc. ("we", "us", "our") provides the mobile application "KURAUDOU" (the "App"). This Privacy Policy explains how we handle information, including personal data, in connection with the App.
1. Information We Collect
1.1 Content you create or save in the App
- Cloud architectures you build (resource layout, connections, per-service configuration)
- App settings (language, display mode, etc.)
This information is stored only in local storage on your device. It is never sent to our servers or to any third party.
1.2 Purchase information
Purchases of the Pro version are processed by Apple App Store or Google Play. We do not receive or store payment details such as credit card numbers. We only receive the purchase status from the store, used to enable Pro features.
1.3 Advertising data
The free tier of the App displays advertisements through Google AdMob. AdMob may collect the following information for ad personalization and measurement:
- Advertising identifier (IDFA on iOS, Android Advertising ID on Android)
- Device information (OS version, device model, etc.)
- Approximate location estimated from IP address (region level)
- Ad impression and tap events
On iOS, we comply with Apple's App Tracking Transparency (ATT) framework and ask for your permission before using the advertising identifier. The core features of the App work whether or not you grant permission.
2. How We Use Information
- To provide and maintain the App
- To verify Pro purchases and unlock Pro features such as ad removal
- To deliver and measure advertising (free tier only)
- To investigate and fix issues
3. Third Parties
We do not sell or rent your personal information. The following third parties may receive data in connection with advertising and purchase processing:
- Google AdMob (Google LLC) — Ad delivery and measurement
Privacy Policy: https://policies.google.com/privacy - Apple Inc. — Purchase processing on iOS
Privacy Policy: https://www.apple.com/legal/privacy/ - Google LLC — Purchase processing on Android (Google Play)
Privacy Policy: https://policies.google.com/privacy
4. Data Retention and Deletion
Architectures and settings created in the App are stored locally on your device. Uninstalling the App removes this data. You can revoke advertising-identifier permission at any time from your device settings.
5. Children's Privacy
The App is rated 4+ and is intended for general audiences. We do not knowingly collect personal information from children under 13.
6. Security
We take reasonable measures to protect against the loss, misuse, or unauthorized access of information.
7. Changes to This Policy
We may update this Privacy Policy from time to time. The updated version becomes effective when posted on this page.