What is fitsw? Write a Review! Write a Review! What is FitSW? FitSW has helped thousands of trainers track their clients' fitness from any type of device, whether its a desktop, tablet, or phone.What can fitsw do for you? FitSW has helped thousands of trainers track their clients' fitness from any type of device, whether its a desktop, tablet, or phone. For Workout Planning, trainers can create, track, and record multiple fitness clients' workouts online in one central location and utilize FitSW's extensive exercise database with exercise demos.What can fitsw do for my clients? Whether you are an online personal trainer or in-person trainer, FitSW enables you to provide a complete health & fitness tracking solution to help your clients excel with the following: Create, track, and record multiple fitness clients' workouts online in one central location. Utilize our extensive exercise database complete with exercise demos.