Great app!

So convenient to use this iPhone app vs buying and carrying around a separate HP. I downloaded it for a class where we used it, and it actually has WAY more features than the actual HP 19Bii! (Not to mention the cost is super competitive compared to the actual handheld calculator, and way more handy). Downside is that most instructors demos are not familiar with this app, and you have to learn all those extra features and quirks on your own. Thats ok for me. The developers very clearly extended the app WAY far beyond the calculator, and now it performs like a rudimentary spreadsheet. No way you can use the original HP in the same way.

Shan the RE Man about 10bii Financial Calculator, v4.0.4