Fitbod - Personalized Strength-Training powered by Machine Learning
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.
WeTrain - On-demand, affordable personal trainers
Hevy - Simple workout logging, insightful analytics, and a growing community of gym athletes.
Kickoff (formerly Kudos) - A certified personal trainer via app & text for $3 a day
Strong.app - Strenght training logger.