Privacy Policy

_Last updated: February 28, 2026_

Sudoku Infinity ("we", "our", "us") values your privacy. This Privacy Policy explains what information may be collected when you use the app and how it is used.

Information We Collect

1. Information You Provide

Feedback content you submit in the app
Email address (optional) if you include it when sending feedback

2. Automatically Processed Data

Basic app usage data needed for core features (for example local progress and settings stored on your device)
Technical request metadata when using backend APIs (for example IP/User-Agent) for abuse prevention and diagnostics

3. Advertising and Purchases

The app uses third-party services such as Google Mobile Ads and StoreKit / App Store for ads and in-app purchases.
These providers may process data under their own privacy policies.

How We Use Information

We use information to:

provide app features and daily puzzle services
process and respond to support/feedback requests
improve app stability and user experience
prevent abuse and secure our services

Data Sharing

We do not sell your personal data.
We only share data with service providers required to operate the app (for example hosting, email forwarding, ads, and payment providers).

Data Retention

Feedback messages are retained only as long as necessary for support and product improvement.
Local gameplay data is primarily stored on your device unless explicitly transmitted by your action (such as feedback submission).

Your Choices

You may:

choose whether to provide an email when sending feedback
manage ad tracking permissions in iOS settings
contact us to request deletion or privacy-related help

Children

Sudoku Infinity is not directed to children under the age required by applicable law in your region.

Contact

For privacy questions or requests, contact:

Email: feedback@jietu.app
Support: https://sudoku.jietu.app/support

Changes to This Policy

We may update this Privacy Policy from time to time. Updated versions will be posted on this page.