Privacy Policy

Fuji Bit Inc. ("we," "us," or "our") provides the mobile application "Procedure Manuals Are Novels" (the "App"). This privacy policy explains how user information is handled in connection with the App.

1. Information We Directly Collect

The App does not transmit or collect any personally identifiable information (such as name, email address, phone number, or precise location) to our servers.

The IDs of maxims you mark as favorites, your user tags, the history of maxims shown (dates and maxim numbers) and the daily rotation order, your first-launch date, your daily-reminder settings (on/off and time), and your personalized-ads consent choice are stored only on your device (via shared_preferences) and are not sent to our servers (the ads consent choice is passed only to the Google Mobile Ads SDK on your device, as the "non-personalized" flag in ad requests, so that ads are served accordingly). The daily reminder is a local notification scheduled on your device; no notification data is transmitted to our servers or to any third party.

Card images created with the share feature are generated on your device and passed only to the destination you choose in the share sheet.

Maxim search runs entirely on your device; what you type is never sent to our servers or to any third party.

2. Information Collected by Third-Party Advertising

The App integrates the SDK of Google AdMob (the Google Mobile Ads SDK), an advertising service provided by Google LLC (United States), to display a banner ad at the bottom of the screen and app-open ads. To serve and display ads, measure ad performance, prevent fraud, and for analytics, the Google Mobile Ads SDK may send the following information directly to Google:

• Advertising identifiers (on iOS, the IDFA only if you allow tracking; on Android, the advertising ID)
• IP address and the approximate location estimated from it
• Device information (OS, model, language, etc.)
• Ad interactions such as impressions and clicks
• Crash, diagnostic, and performance data

This information is transmitted directly by the SDK embedded in the App to Google; we do not collect or sell it. It is retained according to Google's policies. For details on how Google handles this information, please see the Google Privacy Policy and How Google uses information from sites or apps that use our services .

2-2. Consent to Personalized Ads

Android: On first launch, the "About ads" screen asks whether you allow ads based on your interests (personalized ads). The ad SDK does not start until you choose, and ads are served according to your choice.

iOS: On first launch, no in-app consent screen is shown; the tracking-permission dialog described in the next section appears directly. Personalized ads are shown only if you allow tracking. After you answer the dialog, you can allow or decline personalized ads in "Ad settings" in Settings. Personalized ads are shown only when both this setting and tracking are allowed.

On both platforms, non-personalized ads are shown if you do not allow personalized ads. Changes in "Ad settings" in Settings apply from the next ad.

3. App Tracking Transparency (iOS only)

On iOS, in accordance with Apple's privacy requirements, the App displays a tracking-permission dialog directly the first time it is launched, with no in-app consent screen before it, and starts the ad SDK only after your response is final. If you choose "Ask App Not to Track," the IDFA is not used and personalized ads will not be shown to you; only ads that do not use the IDFA will be served. The App's core features remain fully usable.

You can change this setting at any time under Settings > Privacy & Security > Tracking on iOS. On Android, you can reset or delete your advertising ID under Settings > Privacy > Ads (or Settings > Google > Ads), depending on your device and OS version.

4. Firebase (v4.0+) Information Collection

Starting with v4.0, the App uses Firebase services provided by Google LLC. The following services are used in the "hamon-prod" project (project ID: hamon-prod-8b492, asia-northeast1 region, managed by Fuji Bit Inc.):

• Firebase Authentication (Anonymous): For the voting feature, an anonymous UID issued by Firebase is obtained. It is not linked to any personal information (name, email, etc.) and is re-issued when the App is reinstalled.
• Cloud Firestore: The maxim IDs and 1.0–10.0 scores you assign, and the time of each update, are stored linked to the above anonymous UID. Used solely to display ratings and the in-app popularity ranking. Not provided or sold to third parties. You can delete a vote at any time with the "Clear" button on the rating sheet; for any other deletion, please contact us at the address below.
• Firebase Analytics: Collects events such as screen transitions, votes (maxim number and score), vote cancellations, and shares, together with an app instance ID, device information (model, OS, language, etc.), and the country/region estimated from your IP address, to understand App usage in aggregate. On iOS this may include the IDFA if you allow tracking, and on Android the advertising ID. It does not include your name, email address, or similar information.
• Firebase Crashlytics: When a crash or certain errors (such as a failed vote submission) occur, sends the stack trace, device type, OS, and a Crashlytics installation ID. It does not include your name, email address, or similar information. Sent only from Release builds.
• Firebase App Check: Used to block unauthorized requests from outside the App, using device integrity signals from DeviceCheck on iOS and Play Integrity on Android.

For Firebase's privacy practices, please see Firebase Data Processing and Security Terms .

5. Children's Privacy

The App is rated 17+ and is not intended for use by children under 13.

6. Data Retention and Deletion

The anonymous UID and voting data stored in Cloud Firestore are retained for the duration of the service. Uninstalling the App deletes on-device data, but the anonymous UID and voting data in Cloud Firestore are retained. If you wish to have them deleted, please contact support@fujibit.com. Firebase Analytics and Crashlytics data are deleted according to Firebase's default retention periods, and information collected by Google AdMob is kept according to Google's policy. For a per-item list of retention periods and how to stop collection, see Personal Data.

7. Changes to This Policy

We may update this privacy policy from time to time to reflect changes in law or in the App. Significant changes will be posted on this page.

8. Contact

If you have questions about this policy, please contact us at:

Effective: May 8, 2026 / Last updated: November 8, 2026 (advertising service changed to Google AdMob; added a note on maxim search)