GoalsWon - Human accountability coaching for busy people
Human:Activity tracker - Activity tracker - Walking, running, biking and Calorie tracking
CARROT - Meet CARROT, the to-do list with a personality.
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.
Beeminder - Beeminder
Strava - The #1 app for runners and cyclists