Super Converter

A really handy app that not only allows you to convert between different lengths, temperatures, currencies, and many other values, but also displays interesting facts about the values you've entered! In the free version, there are currently over 170 facts included.

In the free version, the currency exchange rate update frequency is limited to 30 minutes. Check out the pro (paid) version for more frequent exchange rate updates, more facts, more conversions, and more units within each conversion. The pro version will also be updated with more facts over time.