Retinal
Nico Rohrbach
Free
About Retinal
Not all displays for Mac are well suited to display the user interface in a non-scaled resolution. A pixel density of about 110 pixels per inch (PPI) for non-Retina, and about 220 PPI for Retina is comfortable for most people.
Use Retinal to work out the pixel density of any display.
Use Retinal to work out the pixel density of any display.