最后更新：2026 年 9 月 7 日 · 另见《隐私政策》与《用户协议》
不需要。计分、运动记录、打卡月历、装备陈列柜、球拍推荐全部不登录就能完整使用。登录只影响两件事：在排行榜露面，以及把生涯数据同步到云端以便换设备恢复。
可以。手表负责自动记录（时长、挥拍数、正反手、心率），没有手表时可以在 iPhone 上手动添加球局，或从「健康」App 导入已有的网球场次。
能。打开 App 里的「从健康 App 导入」，它会找出「健康」里已有的网球运动记录并自动去重，你的球龄从真正开始打球那天算起。导入的场次先按「网球场」显示，进记录详情可以补上真实球场。
不会。不登录时，数据通过 Apple 的 iCloud 在你自己的设备之间同步（存在你 Apple 账户名下的私有数据库里，我们读不到）。登录「局点账号」后，生涯数据还会额外同步一份到我们的服务器，换设备登录即可恢复。
它们始终留在你的「健康」App 里，由记录详情页实时读取显示。这两项数据既不写入 iCloud，也不会上传到我们的服务器——这是刻意的设计，不是遗漏。
App 内「我的 → 隐私管理 → 参与匿名使用统计」关掉即可，立即停止采集，还没发出去的记录也会一并清空。同一页面列明了「会收集」（打开次数与日期、页面浏览与功能点击、一个随机安装标识）与「从不收集」（心率卡路里等健康数据、球场名称与位置、昵称邮箱头像等身份信息）。
不用重新买。在付费墙页面点「恢复购买」，用同一个 Apple 账户即可恢复权益。订阅与买断全部由 Apple 处理，我们不接触也不保存任何支付信息。
订阅管理与退款都在 Apple 一侧：退订走 apps.apple.com/account/subscriptions，退款走 reportaproblem.apple.com。我们无权代为退款，但如果是 App 的问题导致的，写信给我们，我们会协助你向 Apple 说明。
App 内「我的 → 账号 → 注销账号」。服务器上与该账号关联的全部数据（资料、头像文件、排行榜成绩、同步的生涯数据、使用统计）会被删除，同时撤销本 App 对你 Apple 账户的授权。详见《隐私政策》第 7 节。
排行榜会展示其他用户的昵称、头像与自报的 NTRP 水平。昵称和头像在提交时会经过自动审核，但自动审核不可能完美。如果你看到冒犯性、侵权或其他违反《用户协议》的内容，请举报。
我们怎么处理：内容举报优先于其他来信处理，我们会尽快核实。核实属实的，我们会清空该账号的违规昵称与头像，使其从排行榜的展示中移除；屡次违规的，我们保留依据《用户协议》终止其服务的权利。处理结果会回复给举报人。
禁止的内容详见《用户协议》的内容规范一节，包括但不限于：违法信息、辱骂与人身攻击、色情低俗、冒充他人或官方、广告导流、侵犯他人权利的图片。
写信给 linyumingpm@gmail.com。如果是 Bug，附上这些信息能让我们快很多：
功能建议同样欢迎——这个 App 是一个人做的，你的反馈会被认真读完。
完整说明见《隐私政策》。三句话概括：不登录也能完整使用；球局记录默认只存在你自己的设备和你自己的 iCloud 里；不含任何第三方 SDK，不做广告，不做跨 App 追踪。
Last updated: September 7, 2026 · See also the Privacy Policy and Terms of Service
No. Scoring, workout recording, the check-in calendar, the gear locker and the racket advisor all work fully without signing in. An account only adds two things: appearing on the leaderboard, and syncing your history to the cloud so you can restore it on a new device.
Yes. The watch records automatically (duration, swing count, forehand/backhand split, heart rate). Without one, you can add sessions manually on iPhone, or import existing tennis workouts from the Health app.
They count. Use Import from Health — it finds tennis workouts already in the Health app and de-duplicates them, so your playing history starts from the day you actually started. Imported sessions show as "Tennis Court" until you set the real court in the session detail.
No. Without an account, data syncs across your own devices through Apple's iCloud, in a private database under your Apple Account that we cannot read. With a Terava account, your history is also synced to our server and restored when you sign in on the new device.
They stay in your Health app and are read live by the session detail screen. Neither is written to iCloud, and neither is uploaded to our server. That is deliberate, not an oversight.
Profile → Privacy → Anonymous usage statistics. Turning it off stops collection immediately and clears anything not yet sent. The same screen lists exactly what is collected (launch counts and dates, screen views and feature taps, one randomly generated install identifier) and what never is (health data such as heart rate and calories, court names and location, identity such as nickname, email or photo).
Tap Restore Purchases on the Pro screen and sign in with the same Apple Account. Subscriptions and one-time purchases are handled entirely by Apple; we never see or store payment details.
Both are handled by Apple: cancel at apps.apple.com/account/subscriptions, request a refund at reportaproblem.apple.com. We cannot issue refunds ourselves, but if the app caused the problem, write to us and we will help you explain it to Apple.
Profile → Account → Delete Account. Everything tied to that account on our server — profile, photo file, leaderboard results, synced history and usage statistics — is deleted, and the app's authorization for your Apple Account is revoked. See section 7 of the Privacy Policy.
The leaderboard shows other users' nicknames, profile photos and self-reported NTRP ratings. Both are screened automatically when submitted, but automated screening is never perfect. If you see something offensive, infringing, or otherwise against the Terms of Service, please report it.
How we handle reports: content reports are handled ahead of other mail and reviewed as quickly as we can. For confirmed violations we clear the offending nickname and photo, which removes them from the leaderboard; for repeated violations we reserve the right to terminate the account under the Terms of Service. We reply to the reporter with the outcome.
Prohibited content is listed in the Terms of Service, and includes unlawful content, abuse and personal attacks, sexual or vulgar material, impersonation, advertising, and images that infringe others' rights.
Write to linyumingpm@gmail.com. For bugs, these details help a lot:
Feature requests are welcome too — this app is built by one person, and your feedback gets read properly.
The full account is in the Privacy Policy. In short: the app works fully without an account; your session data lives on your own device and in your own iCloud by default; there are no third-party SDKs, no ads, and no cross-app tracking.