Make the whole grid readable
Large, high-contrast numbers and clearly separated sectors keep the full puzzle understandable at a glance.
DokuDoku
iPhone + iPad
Accessible-first Sudoku
DokuDoku is a large-print Sudoku app with high contrast, a zoomed entry view, and clear controls for lower-strain play on iPhone and iPad. Built for players who want a clearer puzzle interface, including seniors and people with low vision.

Everything in one place
Large-print puzzle design is not cosmetic. Small grids, subtle contrast, and cramped controls can turn a relaxing puzzle into unnecessary strain.
Large, high-contrast numbers and clearly separated sectors keep the full puzzle understandable at a glance.
Open any 3×3 section for larger cells, notes, and a roomier number pad that asks for less precision.
Large print, dark mode, haptics, daily reminders, and eight languages are available from one settings screen.
Questions, answered
Yes. DokuDoku is built around larger type, stronger contrast, and readable controls, which makes it a practical option for seniors who want Sudoku with less visual strain.
It is designed around readability, spacing, and higher-contrast play, which lines up with what many people need when standard Sudoku apps feel too visually demanding.