It comes in both free-for-personal-use and commercial versions.
Overview In a recent independent firewall test performed by matousec. Most notably, it lacks the ability to update the software or definitions.
The freeware version has somewhat limited features compared to marketed versions. Thus, product upgrades must be manually downloaded from its website. A firewakl known vulnerability profiling site and company, Secuniahad not found any vulnerabilities as of March, in the software, though Matousec reported a weakness 25th of March, that has been repaired in the latest version.
Online Armor has gained both negative and positive feedback during its fairly short existence, with some users reporting onlnie compatibility problems with certain programs, such as F-Secure and Ad Muncher, as noted in the product website, but also receiving praise for its free online support and for its swift response to problems. Though compatible with only Windows NT, and XPthe possibility of creating a version compatible with Vista is being investigated.