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PlotTwist.software/Sudoku
Plot Twist: Sudoku app iconPlot Twist: Sudoku
by Plot Twist Software

No ads.
No nags.
Just sudoku.

Three new daily puzzles, logic-only grids, and hints that teach. Today's puzzles and every hint are free. No ads, no account.

Coming soon to the App Store

Tap a number to highlight it, or tap Hint to see how hints teach.

Theme

Ink, Plum, Sage and High Contrast are included. Themes marked Extra come with the optional Thank You Extras unlock.

So… what's the twist?

It leaves you alone.

No ads. No nagging. No "watch a video to continue." No pop-up begging you to go Premium right as you're about to place the last 7.

That's it. That's the twist. It's sudoku, really good sudoku, and it leaves you alone to play it.

What's inside

Good puzzles, done right.

Three new puzzles every day

Every day at local midnight, a fresh Easy, Medium, and Hard daily drops. Everyone gets the same three grids for the same date, so you can compare times with your friends, your partner, or that one coworker who swears they're faster.

Solve at least one a day to keep your streak alive, and watch your calendar fill up. Want a nudge? Turn on a daily reminder at whatever time you like. It's off until you say so.

Every puzzle plays fair

Every puzzle has exactly one solution and can be solved with pure logic. No guessing. No coin flip at the end.

Difficulty is graded by the solving techniques a puzzle calls for, not by counting how many numbers are on the board. Easy is relaxing, Hard is hard for the right reasons, and Expert makes you earn it.

Hints that teach

Stuck? Instead of just filling in a square, Plot Twist: Sudoku shows you why. Hints come in steps: first the name of the technique, then where to look, then the reasoning, and only then the answer.

Along the way you'll pick up Hidden Singles, Naked Pairs, Pointing Pairs, X-Wings, Swordfish, and more, all explained in plain English.

Built for your thumb

The number pad sits down low, where your thumb actually lives, not way up by the camera. Left-handed? Flip the controls to your side.

Play number-first (pick a 7, tap every spot it goes) or cell-first, whichever way your brain works.

  • Pencil marks in a clean mini-grid, with a distinct look and feel so you always know which mode you're in
  • Optionally fill in every pencil mark at the start and skip the busywork
  • Unlimited undo
  • Tap a number to highlight it everywhere on the board
  • Real-time conflict flagging if you want it, or check your work only when you ask
  • A timer that pauses when you step away
  • Top 10 best times for every difficulty
  • Your games, streaks, and best times sync across your devices with iCloud
  • Light and dark mode, plus a High Contrast theme
  • Hardware keyboard support

Your business is your business

No account. No tracking.

No data collected. Just you and the grid. Read the privacy policy.

So how is this free?

It just is.

The game is free. Today's dailies, every difficulty, every hint, unlimited puzzles.

If it becomes part of your morning coffee, there's an optional one-time Thank You Extras unlock that lets you replay any past daily from the calendar and adds more color themes. After that, there's a tip jar if you're feeling generous. Nothing pops up mid-game. We won't come looking for you.

Made by a sudoku player who just wanted a sudoku app that didn't get in the way.