「珠落何方：機關推理」的問題回報與常見問題。
遇到問題、有建議，或需要協助，請來信：jk200e@gmail.com
來信時如果能附上以下資訊，會更快找到原因：
開發者為個人開發，通常會在幾個工作天內回覆。
Q：換了手機，或重新安裝之後，購買的關卡不見了怎麼辦？
A：在「解鎖全部關卡」的付費畫面上點「恢復購買」，用當初購買時的同一個 Apple 帳號登入即可恢復，不會重複收費。
Q：遊戲進度存在哪裡？
A：進度只存在您的 iPhone 本機，不會上傳到任何伺服器。因此刪除 App 就會一併刪掉進度，且無法救回。購買紀錄則保存在您的 Apple 帳號中，可以用「恢復購買」取回。
Q：為什麼需要 iOS 17 以上？
A：遊戲的內購功能使用 Apple 的 StoreKit 2，它所需要的元件最低要求就是 iOS 17.0。若把最低版本設得更低，舊系統的裝置雖然下載得到，卻會在啟動時立刻閃退，所以我們選擇如實標示 iOS 17.0。
Q：遊戲需要網路嗎？
A：不需要。除了向 App Store 送出購買與恢復購買的請求（由系統處理）之外，遊戲本身完全離線運作。
Q：有 iPad 版嗎？
A：目前是 iPhone 專用。
Bug reports and frequently asked questions for Marble Logic.
For problems, suggestions, or help, please email: jk200e@gmail.com
Including the following helps track down the cause faster:
This is a solo-developed app; replies usually arrive within a few business days.
Q: I changed phones or reinstalled the app, and my purchased levels are gone. What do I do?
A: On the "Unlock All Levels" purchase screen, tap Restore Purchases and sign in with the same Apple Account used for the original purchase. You will not be charged again.
Q: Where is my game progress stored?
A: Progress is stored only locally on your iPhone and is never uploaded to any server. Deleting the app therefore deletes your progress permanently. Your purchase, however, is tied to your Apple Account and can be recovered with Restore Purchases.
Q: Why does the app require iOS 17 or later?
A: The in-app purchase feature uses Apple's StoreKit 2, whose components require iOS 17.0 as a minimum. Declaring a lower minimum would let devices on older systems download the app only to have it crash on launch, so we state iOS 17.0 honestly.
Q: Does the game need an internet connection?
A: No. Apart from purchase and restore requests sent to the App Store (handled by the system), the game runs entirely offline.
Q: Is there an iPad version?
A: Not currently — the app is iPhone only.