Sometime you can't find ruler when you need it? My Ruler can transform your smart phone to ruler. My Ruler provides three types of units including mm, cm ,and inch. You can put the object on screen to measure it, such as coin. If object length is over screen, use (+) to continue accumulate. My Ruler features: Ôÿà Cumulative length Ôÿà Multi-point measure Ôÿà Return to zero Let start to mesaure´╝ü FB Link: https://www.facebook.com/newfun Developer's Blog: http://rosiechen0409.blogspot.tw/ Fattu Line Store: http://line.me/S/sticker/1030413 If any questions, please send feedback to this email: newfun.app@gmail.com