What are some alternatives?
Convertbot - Missing Apps. You might be wondering where Convertbot, Pastebot, and Weightbot are? We decided to remove most of them from the app store because we just don't have the time to update them in the near future.
ConvertAll - A comprehensive unit conversion program.
Elk - The fastest way to convert currencies on mobile.
XE.com - XE.com Inc. (XE) is a Canadian online foreign exchange services company.
multiConvert - multiConvert is a simple to use small sized unit converter for converting any unit into another one and getting the real time result on the main window of this program.
Converber - Xyntec Automation provides project management and systems integration.