Clamshell
Clamshell is a Mac menu bar app that keeps Apple Silicon MacBooks running with the lid closed, with no external display, admin password or privileged helper. The screen stays black but usable, so computer-use agents keep working. Sold directly at clamshell.dev ($9.99 one-time, 55 licenses) and on Setapp (~600 monthly active users, recurring revenue). Native Swift, macOS 14+, built by Clamshell Kft. in Budapest.
Clamshell
Clamshell is a Mac menu bar app that keeps Apple Silicon MacBooks running with the lid closed, with no external display, admin password or privileged helper. The screen stays black but usable, so computer-use agents keep working. Sold directly at clamshell.dev ($9.99 one-time, 55 licenses) and on Setapp (~600 monthly active users, recurring revenue). Native Swift, macOS 14+, built by Clamshell Kft. in Budapest.
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HungaryRevenue is verified with
LemonSqueezy API key.Last updated: Oct 14, 2026, 06:33 AM
Keeps an Apple Silicon MacBook running with the lid closed. No external display, no admin password, no Terminal. One click in the menu bar.
Closing a MacBook's lid sleeps it, stopping AI agents, downloads and remote sessions. Most lid-closed apps need an admin password or helper and turn the screen off. Clamshell needs neither and keeps the screen usable for computer-use agents.
Audience
Mac power users: developers running AI coding agents, remote Mac users.
Pricing
$9.99 for Lifetime, $19.99 for Lifetime, 3 Macs.
Market
Tech stack
Backend
Additional info
Sold directly at clamshell.dev (55 licenses) and on Setapp (~600 monthly active users). Native menu bar app for Apple Silicon Macs, no admin rights needed. Built by Clamshell Kft.
Screenshot
clamshell.lemonsqueezy.comProduct updates
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