Privacy Policy

Last updated: January 12, 2026

MangaVault ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application.

1. Information We Collect

Information You Provide

  • Account Information: When you create an account, we collect your email address and password.
  • Profile Information: You may choose to provide a display name, avatar image, and other profile details.
  • Collection Data: Information about manga volumes you add to your collection, including titles, ISBNs, reading status, condition, and personal notes.
  • Social Features: Friend connections, friend codes, and interactions with other users.

Information Collected Automatically

  • Device Information: Device type, operating system version, and unique device identifiers.
  • Usage Data: App features used, actions taken, time spent in the app, and crash reports.
  • Camera Data: When you use barcode scanning, camera access is required. We do not store photos or video; we only process barcode data to identify manga volumes.

2. How We Use Your Information

We use your information to:

  • Provide, maintain, and improve the MangaVault app
  • Process and sync your manga collection across devices
  • Enable social features like friend connections and collection sharing
  • Send important notifications about your account or the service
  • Analyze usage patterns to improve user experience
  • Respond to your requests and support inquiries
  • Protect against fraudulent or unauthorized activity

3. Data Storage and Security

Your data is stored securely using Amazon Web Services (AWS):

  • Authentication: AWS Cognito for secure user authentication
  • Database: AWS DynamoDB for collection and profile data
  • File Storage: AWS S3 for avatar images

We implement industry-standard security measures including encryption in transit (TLS/SSL) and at rest. However, no method of electronic transmission or storage is 100% secure.

4. Data Sharing

We do not sell your personal information. We may share data in the following circumstances:

  • With Your Consent: When you choose to share your collection or profile with friends.
  • Service Providers: Third-party services that help us operate the app (e.g., AWS, analytics providers).
  • Legal Requirements: When required by law or to protect our rights.
  • Business Transfers: In connection with a merger, acquisition, or sale of assets.

5. Your Privacy Controls

MangaVault provides privacy settings that let you control:

  • Whether friends can see your collection statistics
  • Whether friends can see your collection value
  • Whether friends can see your top series
  • Whether friends can see your achievements
  • Whether friends can view your full collection

You can adjust these settings at any time in the app's Settings menu.

6. Data Retention and Deletion

We retain your data for as long as your account is active. You can delete your account and all associated data at any time through the app's Settings menu. Upon account deletion:

  • Your profile and collection data will be permanently deleted from our servers
  • Your authentication credentials will be removed
  • Any avatar images will be deleted from our storage

Some data may be retained in backups for a limited period or as required by law.

7. Children's Privacy

MangaVault is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us.

8. Third-Party Services

Our app may use third-party services for:

  • ISBN/Metadata Lookup: ISBNdb, Google Books API, and Open Library to retrieve manga information
  • Analytics: To understand app usage and improve our service

These services have their own privacy policies governing their use of your data.

9. International Data Transfers

Your data may be transferred to and processed in countries other than your own, including the United States where our servers are located. We ensure appropriate safeguards are in place for such transfers.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new policy in the app and updating the "Last updated" date. Your continued use of the app after changes constitutes acceptance of the updated policy.

11. Contact Us

If you have questions about this Privacy Policy or our data practices, please contact us at:

Email: privacy@mangavault.app