This morse code learning app has two main modes: - Learn mode. Where user can learn morse code step by step, using incremental learning of the individual sounds (rather than a look up table of character to code). So for a complete novice, this would start with 1 character, then 2, and so on, but only as users demonstrates that the 'know' the code already introduced. This learning should be built up over a number of sessions, and the current settings are saved so that learning can continue wher