Download the SALT Fitness Company App today to plan and schedule your workouts! From this mobile App you can view class schedules, sign-up for classes, as well as view the location information. Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today! SALT Fitness Company is Swansea, Massachusetts's premier fitness boutique. We're proud to offer our members the best in fitness, nutrition, and wellness services. Our team of experienced professionals is committed to helping you reach your goals.