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Little Snitch for Mac

Average User Rating:
out of 146 votes

Quick Specs

  • Version:
  • Total Downloads:
  • Date Added:
    Sep. 25, 2012
  • Price:
    Free to try; $29.95 to buy
  • File Size:
  • Downloads Last Week:
  • Platform:
  • Product ranking:

Publisher's Description

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User Reviews

Results 1–2 of 2

5 stars

"A must-have-tool"

October 28, 2012  |  By Jessifranko

 |  Version: Little Snitch 3.0


Controlling the outgoing data
Auto notification
network monitor


noting to report so far.


This is a must-have-tool.
Specially for Mountain Lion which has permanently network-traffic.

The outgoing data can be easily controlled. The tool notify you if an application wants to send something out of your Mac.

Beginner may read the manuals.

Better than Apple's crap-tool gatekeeper(confusing poeple, what is good and what is not good).

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5 stars

"The Best 'Reverse Firewall' Available. Now 64-bit."

September 25, 2012  |  By zunipus

 |  Version: Little Snitch 3.0


Little Snitch continues to be the best 'reverse firewall' available. This major upgrade also adds further refinement and control to all out-going Internet calls. It is well worth the $16.95 upgrade price.


NOT for newbies.

The complexity of understanding and controlling out-going Internet calls by browsers and apps these days has reached the point of being often incomprehensible. It requires research to know exactly what is going on. Power users may well find themselves devoting more time than they like keeping up with WHOIS-ing the obscure addresses and ports being called these days. This is no fault of Little Snitch.

I wish Little Snitch had a quick and easy WHOIS service built into each message box. Little Snitch looks up the names of sites being called via reverse DNS. But that's no longer good enough when there is no name associated with an IP address. I want the details quickly at hand.


Little Snitch is now 64-bit, like nearly all of OS X at this point. This version refines control of out-going calls over the Internet. The $16.95 upgrade price is nice. It is well worth buying for any geek level Mac user. I appreciate all the new details that have been added in this version. The developer has put a lot of time into pushing Little Snitch even further in functionality.

The interface of Little Snitch Configuration has become much more complex. Getting used to it will take patience, but provides fairly swift comprehension if you're already used to Little Snitch. Newbies will be overwhelmed, not question about it. Dive in, learn one thing at a time, gradually get the hang of it. Do NOT give up and turn on automatic approval! Keep working on it as this is a valuable tool for many reasons.

I want a full WHOIS service built into every Little Snitch popup box. The app will use reverse-DNS to look up the names of IP services, but frequently there is no server name available. So give me MORE information about the IP address! I want to know who owns the IP address. That can tell me all I need to know. If there really is no data on an IP address, I want to know that as well. I do NOT want to have to keep running a 3rd party WHOIS all the time on obscure IP addresses! It would be entirely easy to add a WHOIS button into the Little Snitch boxes that trigger the WHOIS service built into OS X already. If we've already got a highly complex reverse firewall, which we do in Little Snitch v3.0, then lets get the essential bells and whistles up front and available as well. It is entirely pointless trying to make Little Snitch into an easy basic user application. So let's geek it out to the max if the further details are critical. For me, WHOIS for obscure IP addresses is critical.

One nice feature that appeared immediately when I first ran the upgrade was a notice about redundant settings. You get little Caution symbols listed for the stuff that can be potentially removed, and little diamond symbols for the more general rules that encompass the detailed redundant rules. I don't know where the redundancy came from, but expect it was due to Little Snitch itself adding the basic rules. That's fine. I went through the long list, made sure all the basic rules made sense of each app (which often requires looking up the service and understanding what it does) and tossed out all the redundant rules that were not needed. The result is a nice cleaning.

The big whopping danger with all the complexity of controlling out-going calls is missing that one service you don't recognize, or may be using a copy-cat name, and approving it to call out. There is no doubt that we are going to be 'social engineered' at some point, after an infection has already occurred, to approve a bad service. Therefore, vigilance is required.

This is the sort of stuff that goes right over Granny's head. She'll end up auto-approving everything just to shut up Little Snitch. Therefore, this is Geek software, and very nice Geek software. I suspect that with time and need there will be more easily accessible white and black lists on the net to assist reverse firewalls know what to do without consulting the user every little time. But until then, Little Snitch remains a confusing hassle to anyone who doesn't know what they're doing with it and who doesn't actually WANT its full functionality.

I continue to enjoy having Little Snitch and appreciate the developer's work on it. I look forward to other people's reviews and insights.

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Results 1–2 of 2

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Full Specifications

What's new in version 3.0
  • Brand new Network Monitor
  • Firewall for incoming connections
  • Profiles
  • Silent Mode
  • Simplified Connection Alert
  • Research Assistant for connection attempts
  • Redesigned Configuration Interface
  • Ruleset Analyzer and sorting by precedence
  • Rule Suggestions
  • Domain based rules via Connection Alert
  • More powerful rules (ask-option, time limits, multiple destinations)
  • Improved menu bar item
  • Optimized for MacBook Pro with Retina display
  • New app icon designed by the Iconfactory
Publisher Objective Development
Publisher web site http://www.obdev.at/
Release Date September 25, 2012
Date Added September 25, 2012
Version 3.0
Category Security Software
Subcategory Privacy Software
Operating Systems
Operating Systems Mac OS X 10.6/10.7/10.8
Additional Requirements None
Download Information
File Size 21.21MB
File Name External File
Total Downloads 174,879
Downloads Last Week 237
License Model Free to try
Limitations Not available
Price $29.95

Previous Versions:

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