Preparing tool
How to use Sunlight Readability Simulator
- Add an app screenshot or design, or try the sample.
- Choose indoors, shade or direct sun, and the screen's brightness.
- Read the text contrast left in that light and export the comparison.
What are the limits of Sunlight Readability Simulator?
Reflections are modelled as 5% of daylight spread evenly; real screens differ in coatings and auto-brightness. The image stays on your device.