Looking for a one-time purchase, or free Firewall application to run on Windows 10.

Requested Features

  • Able to monitor active connections, providing both Source and Destination IP Address;
  • Allow me to monitor how much traffic has been sent/received per host/client application;
  • Ability to block/allow connections based on host, IP Address (destination) or port usage;
  • Ability to identify a change in software, and reprompt for access to the internet.

Previously I used Outpost Firewall but it has been discontinued. The only other candidate at the moment is Glasswire.

  • was my answer sufficient? If so please mark it so.
    – DankyNanky
    Commented Jul 31, 2017 at 13:06
  • Any updates here, drakth?
    – DankyNanky
    Commented Jan 6, 2018 at 15:09
  • 1
    I decided to go with Glasswire, other than Comodo, couldnt find a non-subscription option.
    – drakth
    Commented Jan 7, 2018 at 21:34
  • pleaae make an answer then :)
    – DankyNanky
    Commented Jan 8, 2018 at 1:55

2 Answers 2


Whilst I am unsure if you simply want a free solution, or a one-time purchase of versioning (which is rare), I suggest Comodo Firewall.

Comodo Firewall can be installed separately, or as part of the "Comodo Security Suite". The product feature page outlines the following free tools:

Intuituve pop-up for applications attempting to connect to a foreign network, the port and if TCP/UDP:

Comodo Pop-Up

Further inspection of the application PIDS, traffic and amount of data used can be investigated as well:

Process Activity List

The application also allows multiple profiles for the type of network you're connected to, and each profile can have different rulesets to abide by:

Profile Configuration

You can even drill down per rule in each zone to specifically set rules per process:

Application Rules

Which can then be summarised in a simple widget for use:



I finally decided for Glasswire since i couldnt find any other than Comodo.


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