5 stars: I was extremely surprised when I won on my 4th game. It was only 10 cents, but it took little effort and the gift code worked instantly. You don't need to add your email or anything, you just go to Amazon and redeem it instantly. As for the gameplay, it's more enjoyable than other sudoku apps and has notes, hints, etc. Only thing I recommend is watching ads for tickets and dark mode/themes.
4 stars: Been playing for over a year, at first the .10 prize was 4-6 times/week, then settled down to about every other day, occasionally missing a day, but occasionally 2 in one day. Today I actually got the 2nd prize of 1 dollar. I play all 5 games (now 7). So play all the games, your chances are better. I like sudoku, and consider the winnings as a coupon when I shop Amazon.
4 stars: only gave four stars because it's one of those games that I'm not very good at otherwise though it's a good brain teaser for sure and yeah it pays out but you just have to know what you're doing and well be lucky because it's Lottery oh and all though pretty cool I have a problem with it freezing up but it could be my phone do low battery
3 stars: Decent enough Sudoku. Too many ads - 3 per game (1 when finished, 1 when starting, and 1 to get the extra power). It does give you a bit of a payback, roughly 70 cents per 12 hours of gameplay, unless you luck out and get get the 1 or 10 dollar prizes.
3 stars: You won't get rich quick with this. However, if you're just in the mood for so...