I have recently started to learn lua and corona. And I must admit that creating an simple app is not so hard at least for a beginner . Of course, more advanced app/games are still ahead.
Here is my HTML demo (limited in data to save downloading) https://bit.ly/2SKmmGt .
What I can see right now that graphic look much better after compilation to normal application like Windows app or Android. HTML version looks like some graphics is missing (more awful ).
On Chrome works well, but on Firefox "alert window" make some error and refresh is needed to start an application again (of course still in progress at least to improve graphics ).