Romit Dey, Principal at PwC Consulting, summarizes “fake SaaS” as “basically taking a product or service and applying a pricing model to it which charges per user per month.” Fake SaaS opens a door to seeing what the demand is for a SaaS model, but it’s only a transitional phase — not a long-term solution. F5’s journey from hardware to software licensing to SaaS included a brief foray into “fake SaaS” themselves and provides an excellent use case for how to make the shift from a perpetually licensed product to subscriptions. But let’s start at the beginning.