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Privacy Policy

Last updated: September 6, 2026

This policy describes how user information is handled in the iOS app "Hamon" (刃文) (the "App").

1. Information we collect

The App has no app-specific account registration and does not require a name or email address to play. Game data, including your swords, crafting progress, earned fittings, and Renown from version 1.2 or earlier, is stored on your device.

2. Advertising

The App uses Google AdMob (Google LLC) to serve ads. Only opt-in rewarded ads are shown. AdMob may automatically collect:

See the Google Privacy Policy and How Google uses data in AdMob.

You can review tracking permission in your device’s Settings → Privacy & Security → Tracking. Device or account restrictions may prevent changes. You can make swords without allowing tracking. The optional in-app purchase to unlock all fittings in version 1.3 is separate from tracking permission.

3. In-app purchases in version 1.3

“Unlock all fittings” in version 1.3 is a one-time in-app purchase using Apple’s StoreKit. Purchasing and restoring purchases communicate with the App Store. The App verifies transaction information provided by Apple to determine whether the purchased fittings are available. The App does not provide its own form for entering card numbers or other payment details.

The App does not provide its own cloud sync or a way to transfer game data between devices. Restoring a purchase checks the purchased fittings entitlement; it does not restore your swords or progress earned by playing.

4. Wallpapers, saving to Photos, and sharing in version 1.3

Wallpaper images are generated on your device using backgrounds included in the App and the displayed sword. The wallpaper generation feature does not send your swords or images to the developer’s server.

“Save to Photos” requests permission to add an image to the photo library when needed. This feature does not read your existing photos. If permission is denied, the image is not added to Photos. You can still use “Share” to choose another destination.

“Share” passes the exported image to the device’s share sheet. The app or service you choose handles the image according to its own settings and policies. Temporary files created for sharing are removed by the App when the sharing operation ends or during subsequent cleanup.

Coins and rankings in version 1.5

Purchased coins use Apple's StoreKit. Verified transaction identifiers, purchased and earned balances, unlocks and craft-reward receipts are stored in the device Keychain. The App does not send these to a developer-operated server or synchronize balances across devices. Restore purchases does not replenish spent coins.

Rankings are an optional Apple Game Center feature. Choosing Submit personal best sends your highest appraisal score to Game Center, where it appears with your Game Center player name to other participants. Sword images and drawn hamon data are not sent to the leaderboard. Automatic appraisal commentary is computed on your device.

5. Changes to this policy

This policy may be updated as needed. Significant changes will be announced on this page.

6. Contact

Questions about this policy: ruimy.support@gmail.com