Health/Fitness/Lifestyle
MyFitnessPal
I use this one every day. Very useful for tracking meals, macros, weight etc
WaterMinder
I use this one several times a day. It reminds me to stay hydrated if I haven’t logged water entries. Combined with Apple Watch it is a super easy way to track water intake.
Entertainment
Audible
Great for listening to Audiobooks while in the car.
Just for Fun
Duolingo
An excellent way to start learning some new words and phrases for that next overseas trip!