Human:Activity tracker - Activity tracker - Walking, running, biking and Calorie tracking

Sleep Cycle - Bio-alarm clock that wakes you up at optimal times based on your sleep patterns.

Strava - The #1 app for runners and cyclists

Sleep as Android - Common alarm clocks ignore your sleep cycles, they wake you on schedule no matter your are currently in your deep sleep. Waking up from deep sleep is unpleasant, it makes you tired and it may negatively affect your productivity during the whole day.

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.

Talalarmo - Minimalistic android alarm