BUILDS IN PREPARATION

Download gemnotes.

The desktop app holds your archive, reads your handwriting on your own hardware and serves the local MCP server. The Boox app captures raw pen strokes at 5 ms. Both run today — what isn't finished is the signed, notarised installer, and we'd rather say that than hand a warning dialog to people who came here for the security posture.

Desktop · macOS

gemnotes for Mac

  • ChipApple silicon & Intel
  • App sizeconfirmed at release
  • First run+10.9 GB of models
  • Disk~16 GB free

Signing & notarisation in progress

Desktop · Windows

gemnotes for Windows

  • Chipx64 & ARM64
  • App sizeconfirmed at release
  • First run+10.9 GB of models
  • Disk~16 GB free

Code signing certificate pending

Desktop · Linux

gemnotes for Linux

  • FormatAppImage
  • App sizeconfirmed at release
  • First run+10.9 GB of models
  • Disk~16 GB free

Behind the two above

Notebook · Boox

gemnotes for Boox

The native capture app. Raw Onyx pen strokes with pressure, ink latency measured at 5 ms on a Go 10.3 Lumi — down from ~30 ms in the browser. Installs as a normal APK; there is no Play Store listing because Boox devices sideload anyway.

  • RequiresA Boox device with a pen
  • Tested onBoox Go 10.3 Lumi
  • Also needsThe desktop app, same wifi

Held until device pairing is finished — see below

Any e-ink tablet · today

The browser writing surface

A writing surface that runs in your tablet's own browser — reMarkable, Supernote, an old iPad, anything with a pen and a browser. Nothing to install, nothing to sign. About 30 ms ink latency instead of 5, and it produces exactly the same .ink strokes the native app does.

This ships with the desktop app: it's served by your own computer, on your own network, so it arrives when the desktop build does.

Minimum OS versions and exact app sizes are published with the first build — we don't have them measured yet and won't guess.

Why the buttons are greyed out

Two things stand between you and a build.

Not a marketing hold. Two specific pieces of engineering, both nearly finished, both worth waiting for.

1 · Signing and notarisation

An unsigned binary makes macOS and Windows warn your users that the software is untrusted. For a product whose entire argument is about handling your most private data, the first thing you see cannot be a security warning. Certificates are being sorted.

2 · Device pairing

The sync between tablet and computer currently filters by local network address and nothing more. That stops a stranger on café wifi. It is not yet a pairing handshake, and we're not shipping it into strangers' home networks until it is.

Everything else already works. Writing, syncing, recognition at 87.5% of words exactly right, cross-notebook search, reMarkable file import and the MCP server all run today. The honest line-by-line list is on the status page, including what doesn't.
Check your machine now

So the download isn't a surprise.

gemnotes runs its models on your hardware. That's the privacy promise, and it's also a real cost that lands on everyone — including people who never pay us anything.

~16 GB DISK

The models are the download

About 10.9 GB of model weights on first launch, plus room to work. We're actively trying to get to one model instead of two, which would roughly halve it.

RAM

16 GB comfortable · 8 GB unmeasured

We don't yet know whether 8 GB is enough, and that number decides who this product is actually for. If you're on 8 GB, tell us below — it's genuinely the most useful thing you can send us.

SAME WIFI

A computer that's awake

The tablet doesn't read handwriting by itself. Your computer has to be on and on the same network when you sync. A real constraint, and one that rules some people out.

First in line

One email, the day there's a build.

Not a newsletter and not a drip sequence — one message when the button above turns black, and nothing in between.

macOS Windows Linux Boox APK
8 GB 16 GB 32 GB or more No idea

Stored in our own system, not a third-party form service. See the privacy policy.