The Countr POS allows you to process partial payments. These could be using a combination of payment methods, such as Cash, Card, BitCoin, Giftcards and such.
In order to process partial payment, you need to follow these steps
Fill the Cart with all the items that need to be billed and select Pay
Enter the Amount with which the first partial payment will be made.
You will also see the pending amount on the right hand side of the page
Select the Payment method for the partial payment
A Partial Payment popup will appear, once the payment has gone through select Confirm Payment
Repeat the payment steps as many times in as many denominations as your customers prefer till the whole billed amount has been payed.
You can see how it's done on the screen share video tutorial below