My M1 is likely to get Little Snitch soon. Sure it's nice that Patrick Wardell makes his great software available for 'free' (he does ask for support on Patreon), but I'd rather pay for the more robust features in Little Snitch. On Reddit I see a lot of threads which can be summarized as 'LuLu is better because it's free.' Uh, ok, but software doesn't grow on trees. I haven't experienced any particular slowdown - unless a LuLu alert gets burried under other windows, awaiting user action. Each time Zoom attempts the connection, there's a big warning window (which incidentally, doesn't match the LuLu UI leading to confusion).

And LuLu keeps popping up alerts during s that 'warn' me about an untrusted certificate (which is the result of NextDNS blocking ) there is no way to stop this alert in LuLu. Little Snitch is much more flexible on temporary rules and specifying domains, IPs, ports, etc.

LuLu is somewhat disappointing to me: the UI is, well, spartan if not homely, and it has quite a bit less functionality than Little Snitch. I'm using it on one M1 Mac, but stick with Little Snitch on my other Macs. It lets you silence all notifications for a while, and make all your decisions later, conveniently with. The all-new Silent Mode was re-built from the ground up to make dealing with them a breeze. Lulu has advanced quite a bit since this thread started. If you are new to Little Snitch, you may get overwhelmed by the vast amount of notifications from applications wanting to connect to the Internet.

Little snitch for mac 10.10.5