联系我们 / Contact： 在 App 内打开 设置 → 发送反馈。/ In the app, go to Settings → Send Feedback.

管理订阅 / Manage subscription： iPhone 设置 → [你的名字] → 订阅。/ iPhone Settings → [your name] → Subscriptions.

恢复购买 / Restore purchases： 打开付费页，点「恢复购买」。/ Open the paywall and tap "Restore Purchases".

iCloud 同步 / iCloud sync： 请确认设备已登录 iCloud，并在 iCloud 设置里为本 App 开启 iCloud。/ Make sure you're signed into iCloud and iCloud is on for this app.