5 stars: Puzzles are good and quick (basically all solvable in much less than 10 minutes). Only \
4 stars: It's a great little logic puzzle game, does everything it needs to in a smooth, clean UI. I like it enough that when I got a new phone and lost my progress, I was happy to start over and do it all again. And the new layout looks good. ... but I don't like that checking for mistakes now counts as a hint even if there are none. But I guess I'd just start over as described below anyways, so maybe that's not as big a deal as I thought.
4 stars: Do not know why format has changed l am 77 years old and believe that if you have a brain and don't exercise it you will let it turn to Alzheimers or dementia, some of the smartest people I have known ended up that way, thank you for having this App but checking to see if you have made a mistake should not be counted as a hint, I don't care if it takes 3 hours to complete a puzzle I'm going for no hints
3 stars: The update to hint system is illogical. . Having to 'fix all' before knowing which squares are wrong is just weird. Solving the logical puzzles is the main aim for me, getting a better time is fine, but making that harder by downgrading the hint display and upping the penalties just adds frustration and annoyance for all. Is the aim not pleasure in solving and relaxation.
4 stars: Removed a star after UI update. Developer shrunk the clue text making it a headache to read, with no zoom option. Developer's \
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