We use Sketch, as of right now, our designer is satisfied with it. Check this out: http://blog.getinch.com/how-to-use-sketch-for-your-startup/ http://blog.getin

We use Sketch, as of right now, our designer is satisfied with it. Check this out: http://blog.getinch.com/how-to-use-sketch-for-your-startup/ http://blog.getinch.com/how-to-use-sketch-for-your-startup/