Fitbod - Personalized Strength-Training powered by Machine Learning
MuscleWiki - Understand your body, simplify your workouts
JEFIT - Jefit is the #1 popular gym workout app for Android and iOS. Jefit allows you to manage your training routine and keep track of your workout progress easily.
Pushh - Keep track of your fitness selfies
Strong.app - Strenght training logger.
Tonal - Machine learning digital gym + personal training built in