At current working state -- App has a working converter relying on the 'equals' button, and then there are radio buttons that switch the keyboard from binary - decimal - hexadecimal, as well as mathematical operation buttons that are available on the side in previous anticipation to add a 'calculator' layout to this model.  However, this app is about to be re-done.  This check in is a reversion point for a working converter if this re-model fails.