SkinVision - App to detect skin cancer - with 70%+ accuracy
Alpenglow - Never miss a incredible looking sunrise or sunset again
Sunscreen Finder - Find the sunscreen that you will actually use
SunCalc - Find out where the sun will be at any time in any location
DaliaCare - A skin cancer detector for your phone
Solar Clock: Circadian Rhythm - Solar Clock: Circadian Rhythm syncs the Solar time with your Local time and shows important events (Sunrise, Waking up, Breakfast, Lunch, Solar Noon, Sport, Sunset, Sleep Time, …) based on Circadian rhythm.