Privacy policy
Effective 26 September 2026
Clear, practical information about how BlockFlow works.
About this notice
Periwin Studio publishes BlockFlow. This notice explains what information the app handles, why it is used, and the choices available to you. BlockFlow does not require you to create an account.
Information stored on your device
BlockFlow stores your current board, scores, achievements, daily challenge progress, and preferences such as theme, sound, and haptics in the app on your device. The app does not send this game progress to a Periwin server.
You can export a progress backup from Settings. The backup is created only when you choose to copy it, and is then handled by your device clipboard and anything you choose to paste it into. Uninstalling the app or clearing its storage removes locally stored data unless your device has backed it up.
Notifications
If you allow notifications, BlockFlow can schedule reminders on your device. These are local notifications; BlockFlow does not send them through a Periwin push-notification server. You can turn notifications off in your device settings.
Advertising and third-party services
BlockFlow uses Google Mobile Ads to load banner advertisements and optional rewarded videos. When an ad request is made, Google and its advertising partners may process information such as your IP address, device and advertising identifiers where available, app and ad interactions, and diagnostic or delivery information. The exact information depends on your device, region, consent choices, and the ad served.
Google’s services are governed by Google’s own privacy terms. You can manage ad consent choices from the app’s Settings when that option is available, and can also use your device’s privacy and advertising controls.
Analytics and accounts
BlockFlow does not currently initialize Firebase Analytics, Firebase Crashlytics, or a Periwin account system. Ad providers may independently collect information needed to deliver, measure, and protect their advertising services, as described in their own notices.
Your choices and requests
You can stop using the app, disable notifications in your device settings, manage available advertising consent choices in the app, and remove locally stored data by clearing the app storage or uninstalling it. For questions or privacy requests, contact support@periwin.com. We may ask for information needed to understand and respond to your request.
Changes and contact
We may update this notice as BlockFlow or its services change. The effective date at the top of the page shows when this version was published. Contact Periwin Studio at support@periwin.com with questions about this notice.