Hi there is by any mean the possibility to transfer an amount of money from the end of the shift to a virtual account and at the end of the month it calculates everything together, cash flow and money transfered?
I'm not sure I completely understood how you pretend to use the app but I think the "Shift management" options can help you.
During a shift you can register a pay in or pay out, and write down exactly the reason of that movement. If you do like this, at the end of the shift you can keep track of the real amount of cash. The only inconvenience for you is that there is not a global report for the pay ins and outs, so you need to refer to each shift report to check how much money was transfered.