This app is designed to make life easier for QA Engg. Now they can quickly see the mobile user interface in minutes, dots and pixels in perfect size
working principle:
The first step: intercept application debugging. This will automatically save to your Camera Roll -> Photo Album.
Step 2: Open the Screen Ruler application and you can see your recent screenshots, enable ruler and linear frame.
Step 3: Check the screenshot size and UI element location by zoom in / out and using rulers and wireframes.