your feelings,
as a glowing orb.
Lantyrn listens to a five-second voice memo and turns the texture of your voice — its pitch, warmth, and restlessness — into a living orb of light. No rating scale, no streaks, no words put in your mouth. Just a small, honest mirror you can hold at the end of the day.
Most mood apps ask you to score yourself, one to ten. Lantyrn never asks you to name the feeling at all. You speak; it glows. The reading is yours to interpret.
One check-in, start to finish.
The whole flow is a short ritual, not a form — splash, speak, read, keep. Under a minute, every night.
Nothing is interpreted. It's measured.
Lantyrn extracts four acoustic features from your memo, entirely on-device, and maps each to a property of the orb. The same voice always makes the same light.
A sky of every orb you've kept.
Past check-ins live as a constellation, not a calendar. Newest at the center, the rest drifting out around it. You can wander it as a sky, a spiral, or a plain timeline.
A night you skipped is never drawn as a hole. There are no streaks to break and nothing to fall behind on — only the lights you chose to keep.
Built to be honest, and to be left alone.
Entirely on-device
Recording, transcription, and sentiment all run locally with Apple's on-device speech and language models. It works in airplane mode because nothing ever leaves your phone.
No account, no cloud
There's nothing to sign up for and nothing to sync. Your orbs and recordings stay on your device, full stop.
No scores, no streaks
Lantyrn refuses to gamify your inner life. No numbers, no trend lines, no judgment about whether today was “good.”
A mirror, not a metric
The orb shows you back the shape of your voice. What it means is yours to read — the app never tells you how you feel.
Every orb is drawn from one of six worlds.
Your voice chooses the sky, and a color within it. Each has its own palette, particles, and pace of breath.
Hand-built rendering, on-device intelligence.
Each orb is composed live on a Skia canvas — layered auras, a breathing gradient core, drifting aurora bands, and a deterministic particle swarm. Voice features are extracted, transcribed, and scored for sentiment without a single network call.
Your sky is waiting.
Lantyrn is in its final stretch before the App Store. Want an early TestFlight invite? Reach out and I'll add you.