Who does FitSW use as their payment processor? Is there any additional charges? Chris G January 24, 2019 20:20 Follow FitSW uses www.stripe.com for their online payment processing. There are no additional charges, though stripe takes 2.9% + .30 cents for every transaction. Related articles If I purchase an upgraded plan annually (to receive the discount you offer) and I want to upgrade to a plan that includes more clients, will you only charge me the difference of the two plans? Do you allow users to upload their own explanation/demo videos for exercises? If so, is there a different way than YouTube to upload them into the app? How To Upgrade Your Account (iOS) How To Set Up Client & Trainer Automated Email Reminders (Computer) After you create workouts, say you change them every 4 weeks, does the previous program stay saved in their file and keep the recorded weights they lift? Comments 0 comments Please sign in to leave a comment.