✦ Same gestures · same privacy · three ways to run it
Choose your edition
Every edition tracks your hand on the page itself — your camera never leaves your machine. The difference is how far the gestures reach.
✦Browser
Free · runs right here
Nothing installed, nothing signed up for. The Brain graph: your typed notes as a glowing constellation you sculpt mid-air — bloom, collapse, reshape and spin it by hand. Now with the experimental Brain+ pack — fingertip spotlight, pinch-to-pin, two-hand sculpting, clip recording and share links.
Open the Brain✦Full
By invitation · passphrase
Slides driven by hand — PDF and image decks, clean projector output — plus the tiny macOS helper: .pptx / .key decks, pinch real folders open from the graph, drive PowerPoint, Keynote and Google Slides, music and volume.
✦Cloud
On the horizon
Pair your phone and laptop through the cloud and keep decks and notes in your own Google Drive — present from any machine, anywhere. Only pairing signals travel.
Join the waitlist✦Side by side
| Feature | Browser | Full | Cloud |
|---|---|---|---|
| Hand tracking — camera, skeleton, sparkle trail | ✦ | ✦ | ✦ |
| Brain graph — notes as a living constellation | ✦ | ✦ | ✦ |
| Brain+ interactivity (experimental) — fingertip touch, two hands, record & share | ✦ | ✦ | — |
| PDF & image decks | — | ✦ | ✦ |
| Slide control by hand — tilt to flip, pinch and fist poses | — | ✦ | ✦ |
| Projector output — clean slides-only HDMI window | — | ✦ | ✦ |
| PowerPoint & Keynote files — rendered right into the page | — | ✦ | — |
| Pinch-to-open — browse real folders from the graph | — | ✦ | — |
| Drive external apps — PowerPoint, Keynote, Google Slides | — | ✦ | — |
| Music & volume — raise a fist to turn it up | — | ✦ | — |
| Phone ↔ laptop pairing — decks and notes in your own Drive | — | — | planned |
In the full edition, using PowerPoint or Keynote without the helper? Export your deck as a PDF (File ▸ Export) and open that — every slide keeps its exact look. Full workflow in the guide; privacy details in the legal notice.