For macOS 14 or later

The most useful gap
on your Mac.

Hollow turns the notch into a control post: your music, your meetings, your battery, and your Claude Code and Codex agents the moment they need you.

Download for Mac See pricing

7-day free trial, everything unlocked. No credit card.

Open, everything at a glance.

Hover over the notch or click it to open it. Move the pointer away and it closes.

Music: Artwork, progress and controls, and the audio output in one click. — **Music** Artwork, progress and controls, and the audio output in one click.

Calendar: Today’s meetings with their Join button, and the weather. — **Calendar** Today’s meetings with their Join button, and the weather.

Duo mode: Two modules side by side, here Slack and WhatsApp. — **Duo mode** Two modules side by side, here Slack and WhatsApp.

Closed, it shows what matters.

The notch stays black. When something happens, it says so on each side of the camera.

Music playing: the artwork and the bars.

AirPods connected: battery of each earbud.

Charger plugged in, with the battery level.

New on Slack: the unread count, never the content.

Try it here

Make it yours.

This is Hollow’s layout editor, as in its settings. Drag a module into the notch, from one half to the other, or back to the modules.

Hollow Pro

Your agent is waiting.
Your notch tells you.

Claude Code asks for a permission, Codex finished its turn: the project shows up in the notch and the neon lights up. One click takes you back to where the agent runs: Terminal, VS Code, Claude or ChatGPT.

Closed notch: a Codex agent done in the mobile project

Open notch in Duo mode: Claude Code and ChatGPT agents with their status

Pay once, not every month.

7-day trial with everything unlocked, Pro included. Free updates until 2.0.

Hollow

€9.99

Notch, layout editor, Duo mode, neon
Music, audio outputs, volume and brightness
Battery, AirPods and Bluetooth devices
Calendar, weather, Focus, lock screen
Slack and WhatsApp badges

Buy Hollow

Hollow Pro

€19.99

Everything in Hollow
Claude Code agents
ChatGPT · Codex agents
“Agent waiting” neon

Buy Hollow Pro

Already have Hollow? Upgrade to Pro for €10, from the app.

One-time payment, for one Mac. VAT not applicable, art. 293 B of the French tax code.

Questions

Does Hollow work on a Mac without a notch?

Yes. On a display without a notch, Hollow draws one. You choose where it shows: the built-in display, the main display or all displays.

Does Hollow read my messages?

No. Hollow only reads the badge on the Dock icon of Slack and WhatsApp: the number of unread messages, never their content.

Which permissions does it ask for?

Accessibility, to show the volume and brightness keys in the notch and read the Dock badges; Bluetooth, for the battery of your devices; Calendar, for your meetings.

Is it a subscription?

No. You pay once, and updates are free until version 2.0.

What does the trial include?

Everything, Hollow Pro included, for 7 days. No account, no credit card.

Which languages?

English, French, Spanish, German and Simplified Chinese. Hollow follows the language of macOS, or the one you pick in its settings.

What do I need?

A Mac with macOS 14 Sonoma or later.