A photo editor. Enhance those pics by simply swiping left/right or up/down. (Ease of use 5*)

Google Photos!!! Available for iOS, auto backup, & unlimited free online storage.

Alphabear is a solo word game. Create words and find bears that add bonuses to your next challenge.

Weather Timeline (Weather on the Nine's meh, how about Weather on a Timeline?)

Saw this sign in Branson Missouri and took its advice

Saw this sign in Eureka Springs Arkansas

Ingress (a walking game that helps you find neat locations/monuments/murals in the surrounding area)

Android Apps

Camera MX (camera app slightly better than stock IMHO)

Notegraphy (enhance your posts with designs)