Games like Keen

Here are some great alternatives to Keen by Sergey Maltsev :
Mathdoku
Mathdoku
★4.3
KenKen Classic II
KenKen Classic II
★4.5
Classic Sudoku Luxe Edition
Classic Sudoku Luxe Edition
★3.8
Andoku Calcudoku
Andoku Calcudoku
★4.7
Logic Number Puzzle | Guriddo
Logic Number Puzzle | Guriddo
★4.8
Sudoku Ultimate Offline puzzle
Sudoku Ultimate Offline puzzle
★4.7
Sudoku Number Place
Sudoku Number Place
★4.3
MultiSudoku: Samurai Sudoku
MultiSudoku: Samurai Sudoku
★4.8
Sudoku-Doku
Sudoku-Doku
★4.6
Sudoku Classic
Sudoku Classic
★4.3
Sudoku Numbers Puzzle
Sudoku Numbers Puzzle
★4.3
Sudoku
Sudoku
★4.8
Sudoku - Offline Logic Game
Sudoku - Offline Logic Game
★4.0
Sudoku Expert
Sudoku Expert
★3.5
Subiku : the binary sudoku
Subiku : the binary sudoku
★4.6
Sudoku
Sudoku
★3.6