RpnCalc Financial is the best and most popular financial calculator on the Android Market.
It has an interface that users of the HP 12C calculator line will be completely at home with, but does much more. Calculations are far faster, doing in a fraction of a second what the classic calculator could take minutes to compute.
RpnCalc Financial is a highly versatile full-function programmable financial calculator. It includes math, finance, and statistics functions.Features include:
* Time value of money (TVM) * Amortization * Cash flow analysis: IRR, NPV * Bond pricing * Date and interest calculations * Percentages, markups, percentage of total * Scientific mode * Basic (large key) mode * 20 Memories * 99 Program steps * Key click (haptic feedback) * Continouous memory
Improvements over the classic HP 12C:
* 16-level stack * Front four stack elements displayed * Programs can be saved and restored * Programs displayed symbolically * Memories are not sacrificed to make room for program steps * Full amortization display, register display, NPV display, and program display.
RpnCalc Financial has a sixteen-level stack to hold more data. The front four elements on the stack are visible at all times, making it much easier to keep track of where you are in your calculations.
Calculator programs are stored and displayed symbolically, making programming much easier. Programs can be stored and retrieved from the sd card whenever your Android is in file-sharing mode.
See http://www.efalk.org/RpnCalcFinancial for a full description.
If you want to "test drive" a similar calculator before purchasing, try the free "RpnCalc" scientific calculator.
My only regret in changing from an Android phone to the BlackBerry Z10 was my loss of Mr. Falk's RPN calculator. I recently learned that the Amazon Appstore works on BB 10.2.1. My first, and so far, only purchase is Mr. Falk's calculator. It has clear, easy to read graphics and it works in vertical mode. I prefer the light style to the dark style for readability on my device. The only feature that does not appear to work is button clicks, but that is hardly a show-stopper given the app's overall superiority to other RPN calculators that I have tried on the Z10.
This is the ONLY app that I have ever paid for, and it was one of my best purchases ever. I stopped carrying my HP 12c and 17bii calculators after installing this app. Yes the physical buttons on those units are great and more efficient than the touch screen. The offset is that the haptic feedback helps offset the loss of buttons somewhat.
The flexibility to only carry the phone instead of the calculator also and the ability to use in low or zero light conditions are major pluses for the app. What's more the display of the few previous entries, the inclusion of a basic financial calculator really are the icing on the cake. Great job, and the developer is active in making fixes and upgrades from time to time. Bravo!