What or who is FastSpring? Maarten Huijs October 12, 2018 10:09 Updated Follow FastSpring is Our authorised reseller, payment provider & subscription manager. Related articles Does FM Version show me all the changes between solutions? Can I upgrade my account from a ‘single user subscription’ to a ‘business or enterprise’ account? Does fmversion.com offer a free trial? Comments 0 comments Please sign in to leave a comment.