Guess Grid

Word puzzle solver for iPhone

Don't just get the answer. Learn to find it.

Guess Grid solves five- and six-letter word puzzles with clear reasoning, not guesswork. Enter the word you guessed, tap each tile to match the colours your puzzle showed, and watch thousands of possible answers narrow to the few that still fit.

Download on the App Store Free to solve. iPhone, iOS 17 or later.

Recorded in the app. No sound.

How it works

You play your puzzle wherever you play it. Guess Grid does the deduction.

SLATE entered with S, L and T tagged red and A and E tagged green, ready to submit.
1. Enter your guessType it on the built-in keyboard and tap each tile until it matches: red for a letter not in the word, amber for the right letter in the wrong place, green for the right letter in the right place.
After one guess, 26 words remain. Suggestions BRICK, CRAVE, CRIMP, CRUDE and CRUMB are labelled Narrows it down or Possible answer.
2. See what's leftHow many words still fit, and which guesses would narrow things down fastest. Some could win outright; others can't be the answer but rule out more.
After SLATE and BRICK, one word remains: BRAVE.
3. Narrow it downTwo guesses in, one word left. Made a mistake tagging a tile? One tap on Undo brings your last guess back to fix.

A keyboard that thinks

The keyboard shows what you know and what you don't. Confirmed letters keep their colours, ruled-out letters fade, and every letter still in doubt shows the percentage of remaining words that use it.

The stronger the blue, the more a guess using that letter will tell you. A letter in every remaining word isn't a good test; it's a certainty.

A hint, not the answer. Prefer to work it out yourself? Hide the suggestions with one tap and keep just the word count and the letter percentages.

The opening screen: best opening guesses SLATE, STARE, SANER, SNARE and AROSE, above a keyboard where each key shows the percentage of words using that letter.

Five or six letters

Switch between them at the top of the screen. Each length keeps its own puzzle, so you can move between them without losing your place.

Tap the word count to see every word that still fits the clues.

Double letters are handled the way puzzles score them, so a word with two E's gives the right answer every time.

A six-letter puzzle after SALTER: 26 words remaining, with suggestions DEARER, READER, DRIVER, GRADER and HERDER.
The full list of 60 six-letter words still possible, from CEMENT to ZENITH.

Practice Coach

Practise, then see why

Guess Grid picks a word and you have six guesses to find it, five or six letters. Hints stay off unless you turn them on. When the game ends, every guess is set beside the one the solver would have played.

A six-letter practice game in progress with hints on: 34 words still possible, suggestions, and a heatmap keyboard.
Hints when you want themThe heatmap keyboard, the suggestions, both or neither.
A practice review. CRIME was better than 93% of words; opened below it, Why SLATE ranked higher compares CRIME's 111 groups, at worst 324 words left, with SLATE's 148 groups, at worst 209.
Why the better guess ranked higherHow each word would have sorted the possible answers, and why the better split narrows things down further.
A practice game solved in 3 guesses against the solver's 2, with New Word and Share buttons and the start of the review.
You against the solverYour average beside the solver's on the same words, and a chart of how many guesses your solves take. Share a game in one tap.

Your first three practice games are free. After that, Practice Coach is a one-time in-app purchase that unlocks unlimited practice. No subscription. Solving your own puzzles is always free.

Private by design

Nothing leaves your iPhone

No accounts, no ads, no tracking. Your guesses and practice totals stay on your device.

Works offline

The solver, the word lists and practice all run on the device. The only connection is Apple's App Store, if you buy Practice Coach.

Look up any guess

Tap Define to see the meaning of your last guess in your iPhone's built-in dictionary.

Curious how the ranking works?

Why SLATE, not RAISE, even though RAISE leaves fewer words on average. How a guess is scored, what the solver does on the opening turn, and how practice grades you. The full reasoning, with the numbers.

How the ranking works