Thanks for the praise! It is meant for multiple playthroughs and if you visit our Patreon you can play episode 3 now.
I assume you mean the Android version? Alas yes, there is no rollback or hide dialogue option since these mostly rely on mouse or keyboard input but we are trying to find a solution for that in future episodes.
As for text input - we've not noticed such problems nor do we have a reported situation where you change the name and it stays Dave. If you could give us some more info we could do further testing but, for now, no other player or our testing group has reported such problems.