Privacy policy

Kudoku for HarmonyOS stores puzzles, notes, progress, daily challenges, statistics, Hell runs and preferences in the app's private local storage. Gameplay requires no developer account. There are no ads, third-party analytics, cross-app tracking or game-progress cloud synchronization. Game data is not uploaded to developer servers.

Purchases and services

Optional monthly and yearly subscriptions and lifetime Premium use Huawei IAP and require a HUAWEI ID and a network connection. Huawei handles account authentication, payment and orders under the notices shown in its payment flow. We do not receive your account password, card number or payment password. The app receives product information, prices, trial eligibility, signed orders and subscription status to verify, grant and restore Premium, and stores the membership product identifier and entitlement status locally. Purchase data is not used for advertising or profiling. Apple, iCloud and RevenueCat services used by the iOS version do not apply here.

Huawei sends signed purchase, renewal, cancellation, expiry and refund notifications to our order service hosted on Cloudflare. It processes product and order identifiers, purchase tokens, event types, times, subscription status, and queried amounts and currencies for order verification, amount lookup, deduplication and payment support. Bark delivers operational alerts to the developer containing only the app, product, transaction status and amount; alert bodies contain no order number or purchase token. These services may process order information outside mainland China. Puzzles, notes and progress are not sent to them. Free gameplay remains available without purchasing.

Retention and choices

The notification queue clears lookup tokens after the amount lookup ends and clears alert content after successful delivery. Completed-event deduplication and operational records are cleaned up after 35 days from receipt; unfinished events remain until processed. Necessary transaction support records are retained as needed to resolve issues. Huawei retains its own transaction records under its rules. Contact us to request access, correction or deletion; do not send payment passwords or full card details.

The app requests no contacts, location, photos, microphone or camera permission. It sends no notifications and requests no notification permission. Vibration can be disabled in settings. The accepted policy version is stored locally; gameplay and audio do not load before acceptance. Local game data remains until erased in system settings or by uninstalling. Erased progress cannot be recovered from our servers. Removing the app does not cancel subscriptions or erase Huawei orders. Device backup and diagnostics follow system settings and Huawei policies.

Minors and updates

Gameplay does not ask for names, ages, phone numbers or identity details. Huawei payment may require information under its own rules. Minors should use the app with a guardian's guidance and obtain permission before purchasing. We will update this policy before enabling features that change these practices.

Developer: Lu Liang (Gentleflow)
Contact: gentleflowoverseas@gmail.com