Letternaut

Word Hangman for Apple Watch

A quick, space-themed word game built for Apple Watch. Guess the hidden word one letter at a time using the Digital Crown. No phone required. No ads. No in-app purchases.

Letternaut app icon

Built for quick play on your wrist.

Letternaut lives on your wrist and is built for the small moments between everything else. Spin through letters with the Digital Crown, use the category hint to narrow the word, and solve it before your spaceman floats away.

Apple Watch-first gameplay

Play straight from your wrist, without needing to pull out your phone.

Digital Crown letter input

Spin through letters with the Digital Crown, the way the watch was meant to be used.

Quick sessions

Built for short breaks, with rounds that fit in under a minute.

Easy, Medium, and Hard

Three difficulty levels, from gentle warmup to a real challenge.

No ads. No in-app purchases.

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

Night mode

A darker red-toned palette for low-light play.

Letternaut game in progress on Apple Watch

About SolenWave

SolenWave is an independent studio that builds apps worth paying for.

The goal is simple: build apps that feel considered, low-friction, and respectful of the user's time.