Is card-swipe hardware payment system-specific?

Question

Looking at how most card swipe hardware for use with smartphones uses an interface as simple as the audio port, I'm wondering - is there an integration standard they're relying on?

Put another way - could someone use the great looking Square stand with a different payment provider?

Thanks,

Answer 1

Sorry, but these devices are not standardized; each solution is custom and the devices will not interoperate.