Letterex
Grow the word. Spin the dials. Outlast your rival.
A two-player word duel — on one phone, or against The Locksmith.
Play free in your browser App Store — coming soon Google Play — coming soon
Free to play everywhere. One $1.99 unlock for everything. No ads, ever.

Why Letterex

Duel on one phone

Pass-and-play word battles — family dinners, road trips, waiting rooms. Most word games are solitaire. This one is a fight.

Nothing is collected

No ads, no accounts, no analytics, no tracking. Fully playable offline. Your words stay on your device.

Pay once, own it all

Free to play. One $1.99 unlock opens every Locksmith difficulty, scoring mode, 3 hints per duel, and the full lifetime ledger. No subscriptions. No energy meters.

Daily Duel & Zen Mode

One shared puzzle a day with a shareable result card — and a solo Zen cylinder where you keep one unbroken chain alive as long as the dictionary allows.

How it works

  1. Start from a 3-letter word. First move must grow it — add a letter to either end.
  2. Each turn: grow the word, or spin a dial — change one letter in place.
  3. Every result must be a real word. No repeats in a game.
  4. Can't move? You lose. Outword them.

The full game

$1.99 · once

Letterex Complete unlocks The Locksmith's Journeyman and Mastermind difficulties, Highest-Score mode, 3 hints every duel, and your full lifetime ledger. Buy it once, own it forever, on all your devices.

Letterex Jr — for younger word builders

Blocks, not brass

Bright painted letter blocks on a wooden abacus rail — big, friendly, and built for small hands and new readers.

Pip plays along

A cheerful mouse with a brass key takes turns with your child, cheers every word, and never taunts. Hints are unlimited — and they actually tell you the letter.

Nobody loses

No timers, no penalties, no lost turns. A wrong guess just wobbles and invites another try. Every game ends in stars.

A word list built for kids

Short, common words only, screened against anything a parent wouldn’t want on the screen. Same no-ads, no-tracking promise as the original.

A separate app, in development. Ask to hear when it lands.