The Multi license permits multiple users to use the software. However, it does not allow multiple users to ever use the software on multiple computers, regardless of whether such use is concurrent. Since Little Snitch and conventional firewalls fulfill complementary tasks, we recommend that you run both: Little Snitch for connections originating at your own computer and the conventional firewall for attacks from outside. The Single license permits either a single user to use the software on multiple computers or multiple users to use the software on a single computer. And to make it even more handy, Little Snitch can build the rule set interactively: It pops up a dialog when an application tries to connect and asks you what to do. This is where Little Snitch fills the gap: It allows you to filter connections based on the application which attempts the connection. The best alternative is LuLu by Objective-See, which is both free and Open Source. There are more than 25 alternatives to Little Snitch for a variety of platforms, including Windows, Linux, Mac, Android and Android Tablet. This makes it very hard to filter them in an ordinary firewall. Little Snitch does' and is a very popular Firewall in the Network & Admin category. This makes them mostly useful for filtering incoming connections because services listen on well known port numbers.Ĭontrary to incoming connections (which usually go to a fixed port), outgoing connections come from random port numbers.
Little Snitch helps you avoid this situation.Ĭonventional firewalls like the built-in firewall in Mac OS X base their rules only on Internet addresses and port numbers, not on application names. Even statistics information about your computer may be sent this way. You suddenly realize that with every start this application connects to the developer's server. You start an application that tells you that a new version is available. Little Snitch tells you when a program tries to send info to the Internet so you can see what's going on in the background!