Last updated: 2026-05-19
Trace (“the App”) is a personal iOS app that turns your cycling workouts from Apple Health into a shareable photo or short video, saved to your own Photos library.
| Source | What | How we use it |
|---|---|---|
| Apple Health (HealthKit) | Cycling workouts, route, heart rate, distance, duration, speed, elevation | Display them inside the App and render them onto an image or video you create |
| Photos library | Add only — we save the artifact you compose; we never read existing photos | Save the photo / video card you generated |
None. Everything happens locally on your iPhone. The App does not have a server, does not send your health data, photos, videos, or any other personal information anywhere off your device.
The App contains no analytics SDKs, no advertising SDKs, no crash reporters, no third-party libraries of any kind. It only uses Apple’s own system frameworks (HealthKit, AVFoundation, PhotosUI, etc.).
We do not track you. We do not link any identifier across apps or websites. We do not show ads.
The App does not have user accounts. You do not sign in. There is no cloud sync.
The App is not directed to children under 13. We do not knowingly collect any data from anyone.
Because we do not collect or store your data anywhere outside your own device, there is nothing for us to delete or export on our side. Uninstalling the App removes all App-specific local data from your device.
If this policy changes, the updated date at the top of this document will change accordingly.
yaoyuan198711@gmail.com
骑迹（Trace） 是一款个人 iOS 应用：从 iOS 健康里读取你的骑行训练数据， 配上你自己拍的照片或短视频，合成一张/一段可以分享的成品，保存到你自己的相册。
| 来源 | 内容 | 用途 |
|---|---|---|
| Apple 健康（HealthKit） | 骑行训练、轨迹、心率、距离、时长、速度、爬升 | 在 App 内展示；并叠加到你合成的图片或视频里 |
| 相册 | 仅写入——保存你合成的成品，从不读取你已有的照片 | 把你做出来的图片 / 视频卡片存到相册 |
没有。 一切操作都在你手机本地完成。本 App 没有服务器， 不会把你的健康数据、照片、视频、或任何其他个人信息发送到任何地方。
App 内没有任何统计 SDK、广告 SDK、崩溃上报、第三方库。 只使用 Apple 自带的系统框架（HealthKit、AVFoundation、PhotosUI 等）。
我们不追踪你。 不跨 App、不跨网站关联任何标识符，不展示广告。
App 没有用户账户，无需登录，无云同步。
本 App 不面向 13 岁以下儿童。我们不会有意收集任何人的数据。
因为所有数据都只在你自己的手机上、不会上传任何位置，所以我们这边没有 任何关于你的数据可供导出或删除。卸载 App 即可清除所有本地数据。
若本政策有更新，文档顶部的日期会相应改动。
yaoyuan198711@gmail.com