Comparison

CoreLock vs Little Snitch

Little Snitch is a network monitor and application firewall, and CoreLock doesn't filter connections. CoreLock's free scan reports network listeners that aren't loopback-only, alongside app permissions, startup items, running apps, AI agents and Downloads.

Last reviewed October 29, 2026 · 1 source

CoreLock and Little Snitch, side by side

Little Snitch's column was checked on October 13, 2026 against its own pages and dated reviews (sources below). Rows with nothing checked are left out.

Feature	CoreLock	Little Snitch
Firewall	Free switches for the macOS Firewall and Stealth mode (admin password needed). No per-app connection blocking	An application firewall
Network monitor	The scan reports network listeners that aren't loopback-only; a listening address alone doesn't prove another device can connect	Yes: Little Snitch is a network monitor as well as a firewall

What CoreLock doesn't do

Allowing or denying connections: CoreLock doesn't filter connections.
A live network monitor: CoreLock reports network listeners when it scans.

Frequently Asked Questions

What does Little Snitch do that CoreLock doesn't?

Little Snitch is a network monitor and application firewall, so it can allow or deny connections; CoreLock doesn't filter connections. CoreLock's network check reports listeners that aren't loopback-only, and a listening address alone doesn't prove another device can connect or that the service is reachable from the internet.

How much does CoreLock cost?

The local six-check scan is free, as often as you like, with no account. Pro is $9.99/month, $50/year, or $200 once for Lifetime; on Free, the optional cloud AI scan reviews are limited to three a day, and deep file scans need Pro. Every paid plan has a 30-day money-back guarantee.