I'm looking for a screen (pixel) ruler for MacOS.
With the following features:
- Automatic screen artifacts (text, lines, esges) detection and auto measurements between them
- Free hand measurement, so I can set two arbitrary points on the screen and measure between them
- Position several permanent on-screen rulers on the screen so I can see how the distance between elements changes if I introduce any changes
- Change units between pixels, mm, inches, etc.
- Paid is OK
I know that xScope can do all that, but 50 USD seems a little bit too much.