There are two products to think about, the card reader and the crew device.
Popular card reader from Miura is a versatile choice for card data capture. Supporting chip, swipe and, of great importance in these contact-reduction-days, NFC
For the crew POS device, flightPOS software can be installed on the device the airline wants to use. This can be existing iOS or Android tablets or mobiles. If new devices are needed flightPOS can source these and sell or lease to the airline.
Optional co-hosting of the POS software on existing technology alongside other crew applications. flightPOS can integrate with existing data on that crew device to enhance the product e.g. seating, pax detail.