Would gladly pay a few dollars for a full version
Lovers of the Voyageur series of HP calculators (such as the 11C, 12C, 15C, and 16C) already know that RLM produces excellent desktop based emulators of all of these calculators. A lifetime subscription to RLM software can be purchased very economically, though it seems unlikely that this such a subscription will apply to AppStore downloads given the special arrangements developers must make with Apple to get their work posted here. The good news is that we know that RLM has source code for calculators other than the 12C, and hopefully we will soon see iPhone versions of the others, particularly the cult-favourite 15C (I paid almost 400 bucks for a near mint one--they are that beloved by collectors!)
As for the 12c Lite, the only "flaw" in it is that it IS a Lite version, and at the moment a fully appointed paid version is not available. The lack of persistent, continuous memory is really a drawback, especially if, like me, you like to write programs. The same concern applies to cashflow problems--if you want to keep data in the CF registers between instances, you are out of luck. That said, the interface is beautiful to behold, and for those used to typing accurately on the iPhone QWERTY keyboard the smallish keypad will not be any hardship. 12c Lite seems to use the iPhone CPU, which means that complex calculations and programs run faster than on the original calculator.
I encourage all lovers of HP calculators to download this fine app and support its further development by purchasing the full version when it comes out. Also, please write Mr. Matte to encourage a release of the other Voyageur emulators. I know I have!
Edit in Reply to BabeBooth: I do admit that the built in landscape mode calculator is very good, offering double precision display and some excellent extended functions. However, comparing the 12c emulator to this is apples and oranges. 12c lite emulates a classic HP programmable financial calculator that uses Reverse Polish Notation as its entry system. This system involves a four line stack to hold intermediate results that is well known and loved by lifelong HP users. The built-in iPhone calculator is a scientific calculator, uses algebraic entry, and is not programmable. They are totally different things, and calculator and calculator simulator aficianados readily see this. I have no problem with your opinion, but in this case you facts are just plain wrong. The calculator buff loses nothing by trying out this free download.
shrinkie1964 about
12C-Lite