Fitbod - Personalized Strength-Training powered by Machine Learning
Heart Rate - Personal heart rate measuring application.
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.
Welltory - Manage your energy, not your time. Improve your focus & performance with small changes in your lifestyle. Quantified self dashboard for hardworkers.
Strong.app - Strenght training logger.
Cardiogram: HR Monitoring - Accurately measure and monitor your heart rate over the whole day.