Lumina Sudoku
A luminous Sudoku. Every number has its own colour and its own note — solve to the glow of a living aurora, guided by hints that actually teach.
Free · No ads · Works offline · iPhone
Everything you need.
Sudoku, reimagined with colour, sound and hints that actually teach.
Colour & sound
Every digit 1–9 has its own hue and its own note on a soft pentatonic scale. Place numbers and the board lights up and sings.
A living aurora
The background blooms with light as you fill the grid — brighter the closer you get to the solution.
Hints that teach
Not just the answer: Lumina names the real technique — Naked Single, Hidden Single, Locked Candidates, X-Wing — and explains the logic in plain language.
Your solve becomes a song
Finish a puzzle and replay your moves as a melody and a synchronised sweep of light.
Every level, every day
Easy to Expert, each puzzle with one unique solution, plus a fresh Daily Challenge and a streak to keep.
Yours, quietly
Three themes, ten languages, pencil notes, undo/redo and optional mistake limits. No ads, no accounts, fully offline.
Your puzzles stay on your device.
No ads. No accounts. No tracking. Lumina collects no data and works completely offline.
Nothing leaves your device
Your puzzles, progress, streak, statistics and settings are stored only on your iPhone. We run no servers, use no analytics, and the app contains no third-party tracking SDKs.
No account, no sign-up
There's nothing to register and nothing to log in to. Lumina works the moment you open it, online or off.
Questions
Anything privacy-related? Reach us through the support form below.
Need a hand?
Message us, or browse the FAQ. We read every one.
Do I need an account?
Does it cost anything?
What difficulty levels are there?
What languages does Lumina support?
Is any of my data collected?
Which devices?
Want an app like this for your business?
We build native iOS & Android and web apps for clients too — fixed scope, quoted upfront.