LuLu Alternative for Mac: NetBlocker vs LuLu

Two approaches to outbound control

NetBlocker and LuLu can both stop outgoing app connections, but they organize the task differently. NetBlocker starts with the apps you deliberately want to keep offline and groups their related processes in place. LuLu starts from connection decisions and a configurable rule system.

This article is written by NetBlocker’s developer. LuLu details were checked against Objective-See’s official documentation on 20 September 2026. This is not an independent review or a head-to-head security test.

What are you choosing between?

Choose LuLu for open source and hands-on rules

Choose LuLu if open source, zero cost, or granular control over connection rules is central to your decision. It supports manual rules, lists, profiles, and quieter operation as well as interactive alerts.

Those controls reward users who want to manage network policy. They do not make LuLu automatically more suitable for someone whose everyday question is simply which apps should stay offline.

Choose NetBlocker for app-centred simplicity

NetBlocker puts the blocked app, protection status, and associated processes together. You can drag in an app and make one clear decision without building endpoint rules or reviewing every new connection.

That focus is the product: it reduces setup and keeps the interface tied to the apps you selected. At €4.99 with a full seven-day trial and a 30-day money-back guarantee, NetBlocker is aimed at people who value a calm, guided workflow more than granular network-policy controls.

Pricing, compatibility, and offline use

NetBlocker costs €4.99 for a lifetime license, with a 7-day trial and a 30-day money-back guarantee after purchase. It requires an Apple silicon Mac (M1 or newer) running macOS 13 Ventura or later. A paid license needs periodic online validation and has a 14-day offline allowance. After that allowance, or when the trial expires, protection turns off until access is restored through successful license validation or activation.

LuLu is free, open source, and currently supports macOS 10.15 or later on Intel and Apple silicon. NetBlocker is designed specifically for Apple silicon on macOS 13 or later. For either product, test the apps you depend on before making blocking part of your everyday workflow.

Start with one app

Try NetBlocker’s trial with a non-critical app, following our Mac app blocking guide. Reopen the selected app before testing new connections and confirm that protection is active. You do not need to change every rule in your existing setup to evaluate the interface.