Quiet Grid is a logic puzzle app. No account. No internet required. Open source. Your data stays on your device.
PUZZLES
Sudoku — fill the 9x9 grid so every row, column and box contains the digits 1 through 9. Four difficulty levels, from easy to expert.
Takuzu — fill the grid with 0s and 1s following a small set of rules. Straightforward to learn, hard to master.
Minesweeper — the classic, with clean visuals and four difficulty levels.
More puzzle types coming.