这里为iOS开发者推荐一款UI原稿矫正工具，FlawlessApp for Mac内置iOS 模拟器，你可以选择分屏或者叠加的方式对UI原稿进行对比，FlawlessApp mac版支持导入Sketch、jpeg、png、tiff等格式的文件，赶紧试试吧。


Flawless allows you to make your iOS applications look exactly like the expected design. With real-time comparison of the expected and implemented design, everything is integrated into iOS simulator. Flawless made for those who are obsessed with quality mobile applications.