LETTILO: Word Logic Puzzles

One spare letter. A whole new way to think about words.

Swap the spare letter with a letter in a word. The replaced letter becomes your next spare. Every intermediate word must stay valid. Follow the clues until all the words fit together.

FOUR CHAPTERS, YOUR OWN PACE
Explore 300 puzzles in each language: 20 introductory puzzles, 100 flowing challenges, 120 thoughtful puzzles and 60 advanced challenges. Every chapter is freely available, so you can choose where to begin.

A COLLECTION OF ACHIEVEMENTS
See your progress grow and earn distinctive seals for solving 10, 25 and 50 puzzles and completing each chapter. Previous results count, and your progress stays separate for each language.

CRAFTED FOR QUIET PLAY
Porcelain-inspired letter tiles, warm gold details and a different colour palette for each chapter. Choose Automatic, Light or Dark appearance. There is no timer; hints and undo are available whenever you need them. Sound is optional.

TEN LANGUAGES
Dutch, English, French, German, Spanish, Portuguese, Swedish, Norwegian Bokmål, Danish and Finnish. Each language has its own 300-puzzle collection.

PLAY OFFLINE
No advertising and no account required. Your progress is stored on your device. Removing the app also removes its local progress.

One purchase. A thoughtful puzzle collection to make your own.