The crossword without clues

26 letters.
26 empty squares.
One perfect fit.

Every Unolingo® is a 10 × 10 crossword with no clues. Use your word knowledge and a little deduction to place each letter of the alphabet exactly once.

Download on the App Store

Free · 20 puzzles included · iPhone & iPad

Unolingo home screen
A Unolingo puzzle in progress

How to play

What Sudoku does with numbers, Unolingo does with the alphabet. Most puzzles take 5–15 minutes.

1

Pick your level

Choose from four difficulty levels, from 1-star (easiest) to 4-star (most challenging). Harder puzzles give fewer letter clues.

2

Place every letter

Drag each of the 26 letters to the square where it belongs. Every letter is used once and only once.

3

Get unstuck

Use a Hint to reveal one square, or an Audit to see which of your letters are right, each for a small time penalty.

Unolingo puzzle list

Hours of puzzling in your pocket

20 free puzzles

Start playing right away, with more puzzles available in packs of 20 or full series of 160.

Track your progress

Detailed stats show your solve times and completion rate at every difficulty level.

Hand-crafted puzzles

Built from common English words, more likely heard at a party with friends than in a classroom.

Play your way

Race the clock or hide the timer, replay any puzzle, and turn on color blind assist.

Ready for The Next Great Puzzle?

Download Unolingo free for iPhone and iPad.

Download on the App Store