Responsive Viewer - View multiple screen dimensions in one view
Muse Coach Connect - Find a fully-vetted career coach on The Muse
Responsinator - Designed to test responsive websites on different devices.
TrueCoach - TrueCoach is a reputable personal trainer software that makes your life easy via promoting your business to an extreme level with serving less time.
Multi Screen Test - Test your site at different screen resolutions & devices.
Everfit - A platform for personal trainers to train clients online