TrainAway VS Square Installments

Trainaway.fit is probably the closest thing to what you mentioned, as they cover many countries. However, they only sell day passes. I used them a few years ago. Source: almost 2 years ago

Toast uses SSL. So does Stripe (https://stripe.com/) and so does Square (https://squareup.com/us/en/payments). Everybody, without fail now uses HTTPS (SSL), they really do. That ship sailed. If you use the Chrome web browser, anything not serving up puppy pictures over HTTPS says "Not Secure" for the last HALF DECADE. If you google "PCI compliance" it's literally THE LAW that it is required for handling... Source: 11 months ago

Have you tried Square? https://squareup.com/us/en/payments. Source: over 1 year ago

Well, that is precisely the competition that Apple is trying to eliminate. If you look at Square, the company alluded to in the article, they are probably the largest PoS hardware and software provider in that space. Apple is trying to eliminate the need for a separate device by developing software that leverages on existing available hardware that they sell. It’s a pretty good idea. But, as I’ve said, the use... Source: about 2 years ago

I haven't sold any of my software I made as side projects. But that's mainly because I was doing it for fun and wasn't planning to make money from it. But if I did, perhaps I might add a "registration code" scheme like shareware software would often do, and if someone decides to pay for it, they'd get a registration code which would unlock more features in the software (which would probably require a... Source: about 2 years ago