Who does FitSW use as their payment processor? Is there any additional charges? Contents FitSW uses Stripe and there is a 2.9% + 30 cent fee taken out of transactions. FitSW uses Stripe and there is a 2.9% + 30 cent fee taken out of transactions. Updated on February 12, 2021 Was this article helpful? Yes No Related Articles How to Create Filters for Multi-Day Programs (Web) How to Upload Documents to Client Profiles (Web) How To Add New Clients (Web) 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 find a specific client’s workouts, nutrition plans, and tasks (web). How to Create Recurring Events (Web).