LuLu by Objective-See is described as 'LuLu is the free, shared-source firewall for macOS. Its goal is simple; block any unknown outgoing connections, until approved by the user' and is a Firewall in the network & admin category. There are more than 10 alternatives to LuLu by Objective-See for a variety of platforms, including Mac, Android, Linux, Android Tablet and Windows. The best alternative is GlassWire, which is free. Other great apps like LuLu by Objective-See are Portmaster, Little Snitch, OpenSnitch and NetGuard.
LuLu by Objective-See is mainly a Firewall but alternatives to it may also be Network Monitors or Ad Blockers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of LuLu by Objective-See.
Lockdown Privacy is an Open Source and free firewall for your iOS device. We built the product to help protect users from app developers and analytics companies that are monetizing user data without consent or transparency.