Streaks Workout - The personal trainer that you actually want to use.
Runtastic - Runtastic offers a series of fitness apps that can be used to track your running, walking, hiking, and cycling, as well as many other fitness routines. Read more about Runtastic.
Zova - A smart personal trainer that makes it easy to move more
Run on Earth - Run on Earth is an exciting and engaging fitness app that works with Bluetooth enabled treadmills...
SocialBoat.live - A real life Fitness game
MyTrails - Offline trail maps for Android (and online too!)