A Geiger counter for your Claude usage

Stop hitting Claude's limits blind.

A small desk gauge that shows your Claude.ai usage at a glance — the rolling 5-hour window and the weekly cap, with live reset countdowns.

Buy Now — £79 How It Works

Free next-day UK delivery ·

  • 14-day returns
  • Hand-built in the UK
  • No subscription

Visa · Mastercard · Amex · Apple Pay · Google Pay · Klarna

GeigerBox on a desk at dusk: a small white cube whose screen shows 28% of the 5-hour window used, resetting in 1h 24m.
Independent project. Not affiliated with, endorsed by, or connected to Anthropic. Claude.ai is referenced only as the service whose usage this device displays.

The Problem

Your limits are invisible until you hit the wall.

Heavy users get two overlapping limits and no warning. You either pace too conservatively and waste capacity, or run out mid-task and waste time.

A monitor showing a usage-limit message, with GeigerBox in the foreground showing 97% used in coral.

No Warning

Nothing tells you you’re close until you’re cut off mid-thought.

No Glance

Checking means breaking flow to dig through a dashboard.

No Feel

You never build intuition for your own pace. Geiger gives you one.

GeigerBox at the edge of a desk beside a monitor, glanceable from the corner of your eye.

On Your Desk

Designed to be glanced at, never fiddled with.

It just sits there and glows. Colour shifts from lime to amber to coral as you get close — you feel “running low” without reading a single number.

How It Works

Your token stays on your computer.

A small desktop app for Windows and macOS reads your own usage and relays just the numbers — two percentages and two countdowns — to the cube over an encrypted connection. Works on any home network; nothing to configure on your router.

STEP 01

Install the app

Download for Windows or macOS. It lives in your tray and updates itself.

STEP 02

Sign in

Authorise with your own Claude account. Your token never leaves your computer.

STEP 03

Pair the cube

The cube shows a code on its screen; type it into the app. About five minutes, start to finish.

No cloud account. No passwords stored. The relay carries only the numbers on the screen.

The Device

Small object, considered details.

Display2.16″ AMOLED · 480×480 · touch
Size~46 × 46 mm cube
PowerUSB-C · built-in battery, runs unplugged
Connectivity2.4 GHz Wi-Fi · relay — works on any home network
Shows5-hour window · weekly cap · live countdowns
StyleTwo skins + rotation, one button press
Geiger on a bright wooden desk next to a laptop and a potted plant, screen showing current and weekly usage.

Buy

GeigerBox — £79.

Hand-built in small batches and tested end-to-end before it ships. Free next-day UK delivery.

£79

Free next-day UK delivery. Order by 2pm and it ships the same working day. United Kingdom only for now.

Buy Now — £79

Visa · Mastercard · Amex · Apple Pay · Google Pay · Klarna — secure checkout by Stripe.

In the Box

  • GeigerBox unit — assembled, flashed & QC-tested
  • USB-C cable
  • Quick-start card with your pairing code
  • 14-day returns · 12-month warranty

Honest Answers

FAQ

Is this an Anthropic product?

No. GeigerBox is an independent product, not affiliated with or endorsed by Anthropic. It simply displays your own Claude.ai usage.

What does the relay see?

Only what the screen shows: two percentages and two reset times. Your token and account stay on your computer; the relay carries the numbers over an encrypted connection and stores nothing.

Which plans does it work with?

Claude Pro and Max. Max plans get the extra weekly Opus gauge where applicable.

Returns and warranty?

14-day no-questions returns and a 12-month warranty. Details on the returns page.

When does it ship?

It's in stock — order by 2pm and it ships the same working day, free next-day delivery. UK only for now.

What if Claude.ai changes?

The desktop app updates itself automatically — that's where the reading happens, so most changes on Claude's side are fixed without touching the device. Device firmware updates, when needed, are a simple USB update for now.