Suntimes - Android app (and widget collection) that displays sunlight and moonlight times for a given location.

Visualify - Visualize your top artists on Spotify

SunIZup - SunIZup helps you to know the timings of the various Sunlight phases including the Golden Hour and...

SYQEL - Bring your music to life

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.

Kaleidosync - Kaleidosync is an all-in-one Spotify music visualizer that is all set to deliver a top-notch music experience with real-time support.