Touch Screen
Test
is a nice android app that comes in useful when you need to quickly test the
screen of your smartphone. There are three color-related tests (purity,
gradients and shades) and two touch-related ones (single and multi-touch). The
Display info button opens a page showing data about the screen
resolution, pixel density, aspect ratio and current brightness. Depending on
your phone model, in the end you can decide, for example, if the eye comfort
mode must be enabled to prevent eye strain, if the brightness level requires
some adjustment or if the touch sensitivity is still good all over the screen's
surface.