Train Fitness - Automatically track your workout at the gym - hands free!
Boostcamp - Free fitness education app for beginners
MoovBuddy - An exercise app for back & neck pain and joint health
Onyx by Titanium - This website provides operating system utilities for macOS
Dualnback.works - Dual N-back is a specific brain training exercise, that's been shown by research - it might improve fluid intelligence.
FitYo - Launch your own fitness app