價格：免費
檔案大小：55.6 MB
版本需求：需要 iOS 10.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
See how fast your fidget spinner spins! Just hold the spinner in front of the camera and instantly see the current speed!
FEATURES
- Use the camera to measure the rotation speed
- Measure rotation speed in recorded videos (slow motion video works best)
- If you don't have a spinner, try other spinning things or look at the example in the app
支援平台：iPhone