MathBench · Privacy, Terms and Support

生效日期：2026-10-19

隐私政策

数学实验台在设备上计算。进度与实验存档可同步至你自己的 iCloud 私有空间，开发者无法查看。

1. 我们处理什么

输入的方程、表达式和三角形数值在本机计算。关卡进度、提示、用时和实验存档保存在本机，并在 iCloud 可用时同步至你的私有数据库。未完成关卡的操作快照仅存本机。

2. 我们不收集什么

没有账号，不需要登录；不接入广告和第三方统计 SDK；不追踪你在其他 App 或网站的行为；不申请相机、相册、定位、麦克风等权限。

3. 购买与联网

Pro 买断由 Apple 的 App Store 处理，我们拿不到你的付款信息。只有「更多 App」与新版本检查会访问 Apple 的公开接口；断网时其余功能照常使用。

4. 删除与联系

可在设置的外观与模型页面清除关卡进度，也可在我的实验中删除存档；这些删除会同步至 iCloud。卸载 App 仅移除本机数据，不会删除 iCloud 副本。可在系统 iCloud 存储设置中管理云端数据。疑问请从设置联系开发者。

使用条款

数学实验台用于原理演示与推理练习。使用本 App 即表示你同意以下条款。

1. 学习内容

关卡与原理卡为原创内容，不对应任何教材版本或考试，不承诺提高成绩。工具会诚实标注能力范围，近似值标「≈」。

2. Pro 终身版

Pro 是非消耗型的一次性购买，不是订阅，为购买所用的 Apple ID 永久解锁全部关卡、完整推导、全部答案和其他 Pro 功能，可在付费页或设置里恢复。退款由 Apple 处理。

3. 可用性

App Store 偶尔可能不可用，这时免费内容和已解锁内容仍可离线使用。功能会随版本改进，但不会收回已购买的权益。

4. 责任限制

请合法使用本 App。计算结果仅供学习参考，用于重要场合前请自行核对；在法律允许的范围内，开发者不对因使用本 App 造成的间接损失负责。

Effective: 2026-10-19

Privacy Policy

MathBench calculates on your device. Progress and saved benches can sync through your private iCloud; the developer cannot access them.

1. What the app handles

Equations, expressions and triangle values are calculated on this device. Progress, hints, times and named benches are stored locally and sync to your private database when iCloud is available. Unfinished-level snapshots stay on this device.

2. What we don't collect

There is no account or sign-in, no ads, no third-party analytics SDK and no tracking across apps or websites. The app doesn't ask for the camera, photos, location or microphone.

3. Purchases and network

The Pro purchase is handled by Apple's App Store; we never receive your payment details. Only More Apps and the update check contact Apple's public lookup service. Everything else works offline.

4. Deleting data and contact

Clear level progress in Settings > Appearance and model, or delete benches in My benches; these deletions sync to iCloud. Uninstalling removes local data only, not your iCloud copy. Manage cloud data in system iCloud storage settings. Contact the developer from Settings.

Terms of Use

MathBench is for exploring principles and practicing reasoning. By using it you agree to these terms.

1. Learning content

Levels and Principle Cards are original. They don't follow any textbook or exam and promise no change in grades. Tools state their limits and mark approximations with ≈.

2. Pro Lifetime

Pro is a one-time, non-consumable purchase, not a subscription. It permanently unlocks every level, full derivations, every answer and other Pro features for the Apple ID that bought it. Restore it from the paywall or Settings. Refunds are handled by Apple.

3. Availability

The App Store may sometimes be unavailable; free and unlocked content keeps working offline. Features may improve over time without removing what you bought.

4. Limitation of liability

Use the app lawfully. Results are for learning; check them yourself before relying on them for anything important. To the extent allowed by law, the developer isn't liable for indirect losses from using the app.

数学实验台 · MathBench