I decided to download a crossword puzzle app just last week. It turned out to be far more difficult than I expected. I don’t normally do crossword puzzles. The controls were frustrating at first. If I selected a cell, it only told me the across hint. I kept looking for a way to switch between across and down. Checking the help, it said NOTHING about how to do that – the most obvious function! Turns out, you just had to press the same cell again. I was expecting a separate control, not a toggle, and I had to find that by experimenting. As someone that documents software for a living, I found this highly frustrating. I did enjoy the puzzle though. I think I’ll do more.