Apps by Shin Jungsoon

Terms of Use

Last updated: 2026-05-17

What Jiyul is

Jiyul is a single-player daily puzzle game for iPhone and iPad. Each day a single 17×10 board is generated deterministically from the date so that all players worldwide see the same puzzle. The app also includes a built-in solver that plays the same board to provide a daily target score.

Pricing

Jiyul is free to download and use. There are no subscriptions, no in-app purchases, and no advertising.

Acceptable use

You may use Jiyul for personal entertainment. You may not decompile or reverse-engineer the app, redistribute the app or its assets as a derivative product, or attempt to misrepresent the app as your own work.

License

Jiyul grants you a personal, non-transferable, non-exclusive license to use the app on your Apple devices in accordance with the Apple Media Services Terms.

No warranty

Jiyul is provided "as is" without warranties of any kind. The author is not liable for any losses or damages arising from the use of, or inability to use, the app.

Changes to these terms

We may update these terms over time. Continued use of Jiyul after an update means you accept the revised version.

Governing law

These terms are governed by the laws of the Republic of Korea, without regard to conflict-of-law principles. Apple's standard EULA also applies to your use of the app as a licensed application from the App Store.