Letternaut

Word Hangman for Apple Watch

Guess the hidden word one letter at a time before your spaceman floats away. Letternaut is a quick, space-themed word game built for Apple Watch: no phone required, no ads, no in-app purchases.

Space 4:31
O R B I
R S T U V

One letter to go, tap the letter to solve it.

Use the crown or swipe to solve.

Letternaut lives on your wrist, built for the small moments between everything else. Most rounds take under a minute: spin through letters, use the category hint, and solve the word before your spaceman floats away.

1 A word in progress with a letter highlighted in the picker

Spin

Turn the Digital Crown to scroll through letters, the way the watch was meant to be used.

2 Win screen with three stars and a streak count

Solve

Land every letter before your spaceman floats away, and bank the stars to build your streak.

Built for quick play on your wrist.

No menus to wade through, no account to make, no waiting. Just open it, spin, and solve, then get on with your day.

Watch-first, phone-free

Play straight from your wrist. Your phone can stay in your pocket.

Digital Crown input

Spin through letters with the crown. Tactile, fast, and made for the watch.

Under a minute per round

Built for short breaks. Perfect for a line, a coffee break, or a minute between meetings.

Easy, Medium & Hard

Three difficulties, from a gentle warmup to a genuine head-scratcher.

No ads. No upsells.

Pay once. No ads. No in-app purchases.

Night mode

A darker, red-toned palette that's easy on the eyes in low light.