價格：免費
檔案大小：1.7 MB
版本需求：需要 iOS 4.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
-- Your iphone is just a real ruler --
- It's both cm Ruler and inch Ruler
- The longest real ruler with iPhone with diagonal
- It support as long as 3.5 inch and 9 cm about.
-- Easy to use --
- You can just switch the inch an cm ruler
- It's easy for alignment with ruler
支援平台：iPhone