Free, right in your browser — no download, works on any phone, tablet or computer.
Everyone in your group plays the same puzzle each day. Solve fast,
solve clean — your time and mistake count appear on a leaderboard
only your group can see. No public rankings, no strangers, no
follower counts. Just your people.
What's in it
Daily puzzle — same puzzle for everyone, refreshed once a day.
Private friend groups — share an invite code, that's it.
Catch up on missed days — a calendar of every daily, with streaks to keep and monthly trophies to earn.
A tutor that teaches — stuck on a hard one? The lightbulb walks you through singles, pairs, triples, pointing pairs, X-Wings, XY-Wings, swordfish and more — step by step, on your actual board.
Coach mode — practise one technique at a time.
Turn-based multiplayer — take turns on one board with friends.
Plenty of fresh puzzles across Easy, Medium, and Hard, plus speed entry and auto-pencil.
What's not
No adsNo trackersNo analytics
Sudoku Crew collects only what's needed to make groups and
leaderboards work — your email (for sign-in), display name, and
scores. See the
privacy policy for the full breakdown.
Put it on your home screen
It works straight from the browser, but it's nicer as an icon on your phone — it opens full screen, like an app:
iPhone / iPad: open it in Safari, tap Share, then Add to Home Screen.
Android: open it in Chrome and tap Install (or the ⋮ menu, then Add to Home screen).
Friend groups are by invite — ask whoever pointed you here for a code.