О!Касса

Key features:

o Accounting for fiscal transactions;
o Cash flow statistics;
o Print receipts on a Bluetooth printer.

Main advantages:

o Significant reduction in costs for the purchase and maintenance of cash registers;
o Quick registration without visiting the tax office;
o Simple and intuitive interface;
o 24/7 online support.

Registration is only possible at O! because for the service you need to sign a contract.