Privacy Policy

Fraction Calculator · Effective and last updated: August 2, 2026

In short: Fraction Calculator requires no account. Its fraction inputs, calculation history, and preferences stay on your device. The free app displays one bottom banner through Google AdMob.

1. Scope

This policy describes how Lei Wenbin (“we,” “us,” or “our”) handles information when you use the Fraction Calculator iOS application (“the App”) and this support page.

2. Information stored on your device

The App stores fraction inputs, calculation history, and preferences locally using Apple platform storage. This content is not transmitted to us. Removing the App normally removes its local data, subject to Apple device backup behavior.

3. Advertising and consent

The App uses Google AdMob and Google User Messaging Platform. The App is configured to request non-personalized ads and does not request Apple App Tracking Transparency permission. Depending on your region and choices, Google may process an IP address to estimate general location, device identifiers, ads viewed, product interactions, crash logs, performance information, and other diagnostics to deliver, secure, limit, and measure advertising. Where required, the App presents consent controls and an in-app privacy-options entry.

4. No Firebase, account, or cloud content service

The App does not include Firebase Analytics or Crashlytics, does not require an account, and does not send your calculator or puzzle content to our servers.

5. Support communications

If you email us, we receive your email address, message, and information you choose to include. We use it only to respond, troubleshoot, prevent abuse, and meet legal obligations. Do not send sensitive information.

6. Service providers and international processing

Apple distributes the App and Google provides AdMob/UMP. These providers process information under their own terms and privacy policies and may process it in other countries using their legal transfer mechanisms. We do not sell your local app content.

7. Retention, choices, and rights

Local App data remains until you clear it where controls are available, uninstall the App, or remove related device backups. Google retains advertising and diagnostic information according to its settings and policies. You may review applicable ad privacy choices in the App and may contact us regarding information we control.

8. Children

The App is not placed in Apple’s Kids category and is not directed specifically to children under 13. We do not knowingly collect calculator or puzzle content from children.

9. Security and changes

We use reasonable safeguards appropriate to the limited information we control. We may update this policy; the date above identifies the current version.

10. Contact

Email enbilex@gmail.com.