Built to be seen — and never dumbed down

What makes it accessible

Every feature below is built in and ready — most live under Options in the app menu.

• Legible type

  The numbers and text are set in Atkinson Hyperlegible Next, a typeface from the Braille Institute designed to make characters easier to tell apart — so a 6 never reads as an 8, and a 1 never reads as a 7.

• High contrast

  A dedicated High Contrast mode boosts contrast and separates colours for maximum legibility. It also follows your system's "increase contrast" setting automatically.

• Large print

  Digit Size enlarges the puzzle numbers through Standard, Large, and Extra-Large. Pinch-to-zoom stays enabled everywhere, too.

• Light & dark

  Switch Appearance to the theme that's easiest on your eyes, in any lighting.

• Screen readers

  Controls are properly labelled, the board uses clear roles, and moves and hints are announced through live regions — so play makes sense without seeing the screen.

• Full keyboard

  Play entirely from the keyboard: arrow keys move around the grid, 1–9 place a number, Delete erases, and shortcuts cover notes (N), hints (H), and undo (Ctrl + Z).

• Reduced motion

  If your system asks for reduced motion, Sudokufy honours it and quiets its animations.

• Yours, offline

  Works fully offline once loaded, with no ads, no login, and no tracking. Nothing between you and the puzzle.

Our aim

We build toward the WCAG 2.1 AA guidelines as our standard, and treat accessibility as core to the product rather than an afterthought. We won't claim to be perfect — but we do commit to taking real reports seriously and fixing what we can.