Corner Capture Privacy Policy
Updated: October 13, 2026
Corner Capture (角取り) is an iPhone board game with an on-device computer opponent.
Information sent by the app
The app does not send personal information, game records, or usage statistics to the developer's servers or external analytics services. It has no advertising, account registration, external generative AI service, or app-managed cloud sync. The computer opponent runs on your device.
Local storage and deletion
Game moves, difficulty, and the human player's side are stored in files on your device so you can resume a game. The app also stores whether the initial instructions have been shown.
Starting a new game replaces the current game. A previous valid save and protected copies of unreadable saves may remain on the device. Deleting the app deletes these games and settings. Export any game record you want to keep before deleting the app. OS backups follow the operating system and your settings.
If a previous two-player game is stored, the app preserves copies of the original files on the device before carrying the board and move history into a computer game. If preservation fails, play and saving stop.
Optional export
“棋譜を書き出す” passes the game's JSON text to the system share sheet. You choose the destination. The selected service handles that copy under its own policy. The app does not automatically send it to the developer. Manage or delete exported copies at their destination.
External web pages
The app's privacy and support links open in the OS browser only when you tap them. The app does not add game records or identifiers to these URLs.
This website, www.fujikawa.com, loads Google Tag Manager for website traffic measurement. Hosting services may handle connection information such as IP addresses and access logs. The website also collects error information through Sentry when configured. These are website services, separate from gameplay in the app. They do not receive your saved game records, and these mechanisms do not run inside the app.
Contact
Developer: Tadahiro Fujikawa. Email fujikawa@mac.com with “Corner Capture” in the subject.
If you email us, we receive your sender address, message, and any attachments you choose to provide. We use them to reply and investigate the issue, keep them while needed for that purpose, and delete information no longer needed. To request deletion of information in your inquiry, use the same address. The developer cannot remotely read or delete games stored on your device. Do not send passwords or verification codes.
Changes
If features or information handling change, we will update this policy and the App Store disclosures.