Easy Financial Calculator can be used by anyone without any training. It is similar to HP12C and can calculate dates, convert interest as well as calculate: presente value (PV), future value (FV), payment (PMT), number of periods (n), interest rate (i). It shows the cash flow as the most advanced finance calculators as HP12C. You can start calculating without reading any manual (opposite of HP12C).

Convert annual interest to monthly and vice versa;
Calculate how many days there are between 2 dates;
Calculate the date n days after a date;
See a month by month report of cashflow;
Work with nice pie and line charts;