
Jennifer Kremer
it's pretty good mini Sudoku until I went back to redo some levels that I didn't get the best score on and suddenly all my progress was erased and I can't continue past the 4th tier.

Piotr Ginał
cool app, would love to be able to clear a cell, and the drag and drop system does not work too well, no notes feature as well

David Pottage
Too easy, and no way to skip to harder levels.