What are the cash registers with the SDK for android?

Question

Android

There was a question about choosing a cash register for an online store application. A cursory Google search turned up Fondy and Yandex.Checkout, there is also google pay, but I didn’t quite understand, is this also a cash register or something else? What other options can you see?

Answer 1

A cursory Google search turned up Fondy and Yandex.Checkout,

they are aggregators. there are also acquirers. it's all about making money.
and cashiers are cashiers. which checks are punched and shipped to OFD. here either your own, or a cloud one, such as Starrus, for example.