My application for RISC OS for currency exchange rate conversions called Currency has recently been upgraded to version 1.12
New in this version is the ability to set the default currency to convert from and convert to. Also when changing any currency then the current exchange rate is removed. Another update is that if for some reason there is a problem with the download of the exchange rate then the user will be informed.
I have a short YouTube video of the new features in action.
Currency requires a working internet connection and wget to work with the data coming from The Free Currency Converter API site
If you find this or other software of mine useful why not purchase some of my merchandise or donate some money to me through my Ko-Fi pages.