Strong.app - Strenght training logger.
Fitbod - Personalized Strength-Training powered by Machine Learning
Hevy - Simple workout logging, insightful analytics, and a growing community of gym athletes.
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.
Ewolo - A simple, flexible mobile-friendly workout logger & tracker
ScienceTraining.io - Maximize your endurance coaching efficiency