遇到问题、想反馈 bug、要求删除账号，或者发现题目有错误，都可以直接发邮件：
你也可以在应用内提交反馈：打开「我的」标签页 → 意见反馈，填写内容并留下邮箱，我们会回信。
在刷题标签页顶部点击当前州的名称即可重新选择。如果你打开了定位权限，应用会用大致位置推断州并提示你确认——确认后仍可随时手动改回。
不必须。拒绝定位后，你需要手动选择所在州，题库、手册、路标练习都能正常使用。只有 DMV 考点地图上的“我的位置”和“到考点的驾车距离”需要精确定位。你可以随时在 iOS 系统设置 → DriveMate 里开关定位。
先确认用的是同一个登录方式（同一个邮箱、同一个 Apple ID、同一个 Google 账号或同一个手机号）——练习进度与错题是跟账号走的，不是跟设备走的。已购买的内容请在「我的」标签页里使用“恢复购买”，需要与原购买时相同的 Apple ID。若仍未恢复，请把 App Store 的收据邮件转发给我们。
在答题页面长按/点击题目下方的纠错入口提交，或直接发邮件把题目截图给我们。各州题库我们会定期跟着官方手册更新。
打开「我的」标签页 → 删除账号，按提示确认即可。如果应用内删除失败，发邮件到 heronsong1024@gmail.com，标题写“删除账号”，注明你注册用的邮箱或手机号，我们会在核实后 30 天内手动删除并回信确认。详见隐私政策第 5 节。
确认手机号带了正确的国家区号；等待 60 秒后可以重新发送。如果多次尝试后被临时限制，请过一小时再试，或改用 Apple / Google 登录。如果你忘记了邮箱账号的密码，目前请发邮件到 heronsong1024@gmail.com，我们会帮你发送密码重置链接。
App 内购买的退款由 Apple 处理，请到 reportaproblem.apple.com 提交。我们无法直接为你退款，但如果是应用故障导致的问题，告诉我们，我们会协助说明情况。
For bugs, questions, account deletion requests, or question-bank corrections, email us directly:
You can also submit feedback inside the app: "我的" (Me) tab → 意见反馈 (Feedback). Leave an email address and we will reply.
Tap the state name at the top of the practice tab to pick a different state. If location access is granted, the app infers a state from your approximate location and asks you to confirm; you can always override it manually.
No. If you decline, select your state manually — question banks, handbooks, and road-sign practice all work normally. Precise location is only needed for "my location" on the DMV office map and for driving distance to an office. You can change this any time in iOS Settings → DriveMate.
Make sure you signed in the same way as before (same email, Apple ID, Google account, or phone number) — progress and wrong-answer records follow the account, not the device. For purchases, use "Restore Purchases" in the Me tab with the same Apple ID used to buy. If it still does not restore, forward us the App Store receipt email.
Use the report-a-question entry on the quiz screen, or email us a screenshot. Question banks are updated against the official state handbooks.
Open the "我的" (Me) tab → Delete Account and confirm. If in-app deletion fails, email heronsong1024@gmail.com with the subject "Delete Account" and the email address or phone number you registered with; we verify and delete within 30 days and confirm by reply. See section 5 of the Privacy Policy.
Check that the phone number includes the correct country code, and wait 60 seconds before requesting a new code. Repeated attempts may be rate-limited — wait an hour, or sign in with Apple or Google instead. If you forgot the password for an email account, email heronsong1024@gmail.com and we will send you a password reset link.
In-app purchase refunds are handled by Apple at reportaproblem.apple.com. We cannot issue refunds directly, but if the problem was caused by an app defect, tell us and we will help document it.