Current version Krubkrong avalible only Ipad, Teblet, and Web broswer version. we will have the mobile app phone support in the next update.
Yes, sure krubkrong has built in POS system that integrate right away with your inventory system.
Krubkrong will update woocommerce integration in the next update.
Krubkrong will update the shoptify integration in the next update.