ATUM works and is compatible with 2 Woocommerce POS plugins that I use. 1 is by actuality extensions 100usd and 2 OpenPOS 60usd. Both don't need monthly fee.
Both POS plugins are not 100% stable. So when 1 doesn't work I switch to the other. There is simply no time to wait for their support to fix an issues as virtual POS is used every few minutes.
Definitely. ATUM making their own POS would make sense and really be amazing. Their plugin is usually very stable and has slick design.
ATUM, If you decide to do it please integrate an option which other POS plugins don't have, which is: Product Exchange/Return directly from POS screen. As of now to exchange you must search for the order manually, do refund, then create a new order.