Brogrammer - Easy fitness for the busy bees
wger - FLOSS workout, fitness and weight manager/tracker written with Django
Nike+ FuelBand - Nike+ FuelBand is the product of Nike Inc.
Strong.app - Strenght training logger.
Nike Training Club - Your ultimate personal trainer
Strongify - Strongify is the easiest workout tracker app. Enter the number of reps and the weight you lifted in just a few taps. Create any exercise that you want and track your progress over time.