Am currently developing an app which uses an IaaS named Auth0. Great experience so far, reasonable docs, unlimited users, social login, sso and support for about $29/m.

After an inquiry from a customer to provide MFA, I contacted Auth0 to see what​ it would take to use this feature.

"We only offer this in our Enterprise plan which starts at $18k/yr."

Well, fuck me with a pitchfork and call me Bridget the midget. I'll code it my goddamn self.