ComiLog

1. Overview

This app stores book and comic information registered by the user locally on the device. Some features involve anonymous usage statistics for service improvement and communication with external APIs to retrieve book information. We do not collect personally identifiable information such as names, email addresses, or phone numbers.

2. Data Collected and Purpose of Use

2-1. Data Stored Only on Your Device

The following data is stored only on your device and is never sent to the developer or any server.

• Series information registered by the user (title, volume count, author, publisher, status, tags, notes, etc.)
• Image data registered by the user (cover photos, etc.)
• App settings and theme preferences

2-2. Anonymous Usage Statistics (Firebase Analytics)

We use Firebase Analytics (Google LLC) to collect anonymous usage statistics for the purpose of improving app features and fixing bugs. The information collected includes the following.

• Screen navigation and feature usage (e.g., series additions, backup operations)
• In-app action logs (which features are used, etc. — no personal data such as book titles is included)
• Device information (OS version, model name, language settings, etc.)
• Anonymized user properties (e.g., range of registered series count)

This information does not identify individuals and is used as aggregated statistical data. For details, please refer to Google's Privacy Policy.

2-3. ISBN Lookup / Barcode Scan

When you use the automatic book information retrieval feature via barcode scan or ISBN entry, the ISBN code is sent to the following external APIs to retrieve bibliographic information.

• OpenBD API (operated by Hanmoto.com / Calil) — Used to retrieve book information for Japanese titles. Only the ISBN code is sent. Privacy Policy: https://openbd.jp/
• Google Books API (Google LLC) — Used for overseas titles and as a fallback for Japanese titles. Only the ISBN code is sent. Privacy Policy: Google Privacy Policy

This feature only operates when you perform a barcode scan or ISBN entry. No external API communication occurs when using manual entry.

2-4. Remote Configuration (Firebase Remote Config)

We use Firebase Remote Config (Google LLC) to retrieve app configuration settings from the server. No personal information is sent in this communication.

3. Rakuten Affiliate

This app participates in the Rakuten Affiliate Program. Tapping the "Buy on Rakuten Books" button displayed on the series detail screen will direct you to the Rakuten Books search page via a URL that includes the developer's affiliate ID.

• Only the affiliate ID and a book title search query generated by the app are sent from the app to Rakuten. No personal information of the user is transmitted.
• If a user purchases a book on the Rakuten website, the developer may receive an affiliate commission.
• Browsing and purchasing on the Rakuten website is subject to the Rakuten Group Privacy Policy.

4. Advertising

This app may display advertisements. Advertising services (such as Google AdMob) may collect the following information.

• Advertising ID
• Device information (OS, model name)
• App usage logs

This information is used to optimize ad delivery and does not identify individuals. For details, please refer to Google's Privacy Policy.

5. Backup Feature

If you choose to use the backup feature, your data will be saved to a location of your choosing (device storage, Google Drive, etc.). If you choose to back up to Google Drive, Google's Privacy Policy applies. The developer cannot access this backup data.

6. Data Deletion

You can delete local data at any time by the following methods.

• Reset data from the in-app settings
• Uninstall the app (all local data will be permanently deleted)

Deletion of statistical data collected by Firebase Analytics is subject to Google's policies.

7. Security

Data stored locally depends on the security settings of your device (screen lock, encryption, etc.). Please manage your device security appropriately.

8. Policy Changes

This Privacy Policy may be updated as needed. In the event of significant changes, we will notify you within the app or on the website.

9. Contact

For questions about this Privacy Policy, please contact us at the following.

Email: [email protected]

X (Twitter): @goshow12167

Last Updated: June 21, 2026

Established: November 23, 2025