口算乐 / Mental Math Fun | 最后更新 Last updated: 2026-06-27
本 App 不收集任何个人信息，不连接服务器，不追踪用户行为。
This app does not collect any personal information. It does not connect to any server or track user behavior.
练习记录（正确率、用时）仅保存在您的设备本地（UserDefaults），不上传至任何服务器。
Practice records (accuracy, time) are saved locally on your device only (UserDefaults) and are never uploaded to any server.
App 内提供"一次性买断"和"自动续期年度订阅"两种解锁方式，购买均通过 Apple App Store 完成，我们不接触或存储任何支付信息。
This app offers a one-time unlock purchase and an auto-renewable annual subscription. Both are processed entirely by Apple's App Store; we do not access or store any payment information.
· 订阅费用将在确认购买时从您的 Apple ID 账户中扣款；
· 订阅会自动续期，除非在当前订阅周期结束前至少 24 小时关闭自动续期；
· 续期费用将在当前周期结束前 24 小时内扣款，续期价格与当前订阅价格一致；
· 您可以在购买后随时前往「设置」→ 您的 Apple ID → 「订阅」管理或取消订阅，取消不会影响当前订阅周期内已付费的使用权限；
· 如订阅包含免费试用，购买同一订阅将作废任何剩余的免费试用期（如适用）。
· Payment will be charged to your Apple ID account at the confirmation of purchase;
· Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period;
· Your account will be charged for renewal within 24 hours prior to the end of the current period, at the same price as the current subscription;
· You can manage or cancel your subscription anytime in Settings → your Apple ID → Subscriptions; cancellation will not affect your access for the remainder of the period you already paid for;
· Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable.
本 App 专为儿童教育设计，不收集儿童的任何个人数据。
This app is designed for children's education and does not collect any personal data from children.
如有疑问，请联系：han2005v@hotmail.com
For questions, contact: han2005v@hotmail.com