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Sander de Snaijerleft a comment
My dad just wanted Sudoku without a subscription and I was frustrated with intrusive ads, paywalls, and the lack of variants. That’s how this started. I wanted Killer mode, tiny and giant boards, landscape support, and good stats so I built it. As a personal challenge I also wanted to make it for both iOS and Android (I’d never shipped Android before), support multiple languages, and add...
Sudoku UltimatoA calm Sudoku playground with Killer and big grids
Ultimato treats Sudoku as a calm puzzle space. No unexpected ads, no time pressure. It adds variants like Killer and supports both pocket-size boards (4×4) and massive 16×16 grids. There’s detailed progress + stats, fast input, accessibility settings, and landscape mode for comfortable long sessions.
Sudoku UltimatoA calm Sudoku playground with Killer and big grids