Sudoku for Android

I never write a review but I had to because of this app. I already had a sudoku app but I downloaded this one to get free tokens for tap joy. Immediately opening it I didn’t like the look of it, the other app is simplistic, which is how I like it. I then wanted to use a hint but noticed I only have 20 credits, when it takes 25 to purchase a hint. If a game is going to give you free credits off the bat for a hint then you should give the amount it takes for a hint, and then you can watch a video for or purchase more. So I watch a video and get credits and use it, but then numbers are shown across all of the empty squares. I think to myself ok wow piece of cake now and start filling in the blanks. I get to the last one and I enter the last number... only for it to say something along the lines of: lost!! Would you like to erase the whole grid or just the last number you entered? Even though that last number fit perfectly and would have solved the puzzle. So basically I wasted my time doing this for free tokens I’ll end up winning anyways. Don’t get this app, find a different sudoku app.