Mist is a quiet mini sudoku puzzle app for iPhone and iPad. We designed it to respect your privacy: Mist does not require an account, and it does not collect, share, or sell your personal data.
Your game progress — daily puzzles, level completion, streaks, statistics, achievements, theme choice, and settings — is stored locally on your device. It is not uploaded to us.
Mist shows ads through Google AdMob (banner and interstitial ads, plus optional rewarded ads you can choose to watch for hints). Before any tracking across other companies’ apps and websites for personalized advertising, the app asks your permission using Apple’s App Tracking Transparency (ATT). You may allow or deny this, and change your choice anytime in your device Settings. You can also subscribe to Mist Premium to remove all ads.
We use Google / Firebase Analytics and Microsoft Clarity to understand anonymous, aggregate usage (such as which screens are used) so we can improve the app. This data is not used to identify you personally.
Mist Premium is offered as an auto-renewable subscription (monthly or yearly) and as an optional one-time lifetime unlock. All purchases are handled entirely by Apple through your App Store account. We never see or store your payment information. Subscriptions can be managed or canceled anytime in your App Store settings.
Mist is suitable for general audiences and does not knowingly collect personal information from children.
Questions about this policy? Email wuyuping38@gmail.com.