Ach4el

I really like this daily exercise for my brain. I would have given it a five but a one of the functional updates done recently isn’t welcome. Now when I want to backup on letter selection, perhaps because I accidentally touched the wrong letter, all my selected letters are removed and I have to totally start over. Otherwise, the ability to customize functions and ‘mix up’ the letter presentation are great upgrade. Suggested updates: 1) If I missed how to do this, my apologies. Could you add a way to go back to previous days to work on those challenges? I haven’t figured out a way to activa