01
People who cannot easily speak
ALS, aphasia, ICU, post-stroke — anyone who can still blink or move their head.
Product
Built for the way intention becomes speech.
From a passing idea to a meaningful exchange.
Sense → choose → speak
Live on iPhone and Apple Watch.
Full Grok conversations with Apple Health and live metrics as context. If speaking is hard, Muse 2 or the front camera turns a blink, nod, or head shake into a spoken reply in your voice.
Join early access
Philosophy
Built for decision, not performance.
Quiet software for hard moments — and for everyday Grok on a wrist.
02
Caregivers and clinicians
The phone hears the room, shows reply options, and speaks the chosen line out loud.
03
Anyone who wants Grok close
One tap, live voice, health and location in context. Quiet enough for a plane.
Two ways to talk
Talk to Grok. Talk to people.
Same product loop. Different rooms.
Talk to Grok
AssistantAsk about your health, search the web, check X. One tap starts a live voice session. Grok answers out loud. Tap to talk or hold to talk. Works on iPhone and Apple Watch.
Talk to people
Mind + cloned voiceBuilt for people who cannot easily speak. The phone hears the other person, shows reply chips, and a cloned voice speaks the line you pick — so you can talk to the room.
Muse 2
EEG + IMU over Bluetooth Low Energy. No Muse app. Do not pair in iPhone Settings.
Face camera
On-device ARKit. No band. Preview can hide; tracking stays on.
What ships today
Live voice. Real sensing. Soft Health UI.
Invite-only TestFlight. No public App Store listing yet.
Live Grok Voice (xAI realtime) on iPhone and Apple Watch
Tap to talk or hold to talk
Talk to people with reply chips + cloned TTS
Muse 2 blink / nod / shake
Front-camera blink / nod / shake (ARKit, on-device)
Permissioned Apple Health, location, calendar, reminders
How it works
Sense → choose → speak.
Three steps. The band is optional. Gesture math stays on the phone.
01
Hear
Grok listens to you, or to the person in front of you.
02
Choose
Tap a chip, or blink / nod / shake with Muse 2 or the camera.
03
Speak
Grok answers, or your cloned voice says the line to the room.
All gesture math stays on the phone. The band is optional.
About
Wrist, room, and privacy.
Apple Watch
Same talk loop on your wrist.
Status, talk / stop, crown volume, short transcript. The phone is the hub for Muse and camera. Sign-in syncs from iPhone.
Privacy
Permissions only when needed.
Microphone, camera, Bluetooth, location, and Health are requested only when a feature needs them. Face tracking runs on-device with ARKit. Muse never requires a Muse account. xAI auth stays in the Keychain. ThinkVoice does not invent faces of real people.
FAQ
Short answers.
Do I need Muse 2?
No. Talk to Grok works with a tap. Talk to people can use the front camera instead
of the band.
Is this a medical device?
No. Assistive voice software. Not a diagnostic product.
How do I get it?
TestFlight invite. Request access via the form — we’ll send an invite when a seat opens.
Join early access.
ThinkVoice is invite-only. Fill out the form and we’ll send a TestFlight link when ready.
Join early access