CompCalc

It's a hex calculator, "tape-roll" adding machine, scientific calculator, engineering calcuator, triginometric calculator - and more! CompCalc has been a popular calculator for the Blackberry for years, and is now available on the iPhone! CompCalc is packed full of some neat and unique features, including it's use of engineering and computer ("SI") notations and it's "tape-roll" display.

MemoVault allows you to store personal information, such as passwords, social security numbers, PINs, combinations financial data and other information on your iPhone, while keeping it secure and out of prying eyes. MemoVault brings the functionality of the standard Notepad to your iPhone or iPod Touch, with the notable addition of strong AES-128 encryption. Your MemoVault is password protected, securing the data against unauthorized entry both on your iPhone or iPod Touch, and on your desktop in the iTunes Application backup archive.

HexCalc is a simple calculator with Hexadecimal, Octal and Decimal conversion functions.