價格：免費
檔案大小：16 MB
版本需求：需要 iOS 9.3 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
This app show a ruler, in cm and inch. You press button to change cm to inch.
This ruler can also measure area of small thing if you put it on phone screen. Just touch screen and drag the lines to fit with object.
No need a real ruler, just use your mobile phone, anywhere.
支援平台：iPhone, iPad