Last updated: August 2026 · Applies to ShutterMeter for iPhone, version 1.0
ShutterMeter collects no data. There is no account system, no analytics, and no advertising. The app contains no networking code of its own, so what your microphone and camera capture stays on your iPhone.
When you start a measurement, the app records a few seconds of audio and analyzes it on your device to find the shutter's opening and closing sounds. The recording is processed in memory and is not saved as a file, not uploaded, and not shared with anyone.
A future camera-based mode analyzes frame brightness on the device the same way. Camera frames are never stored or uploaded.
Cameras you add and measurements you save are stored in a local file inside the app's own sandbox on your iPhone. They leave your device only if you delete the app's data or your device backup includes them. I have no way to see them.
The one-time unlock is processed by Apple through the App Store. ShutterMeter only receives Apple's confirmation that the purchase is valid; it never sees your payment details.
If a future version ever changes any of the above, this page and the App Store privacy label will be updated first. Questions: szpwqq@gmail.com.
简要中文说明：快门测速仪不收集任何数据。录音与画面全部在你的 iPhone 上分析，不上传；测量记录只存在本机；购买由 App Store 处理，app 接触不到你的支付信息。