I have used both proggies very extensively. Outpost is fine when it works. Periodic updates make it constantly lose it registration and/or completely block internet access on random peoples computers/systems/networks. No one appears to know why this happens, but it is a frequent ocurrance. I am a pretty savvy computer tech by now (started in 1979) & I have spent hours trying to fix their updates when they all of a sudden block internet access. Tried EVERYTHING on the Oupost help page for this (yes they have a whole page dedicated to this chronic problem!) with no luck. So if you do not mind losing internet & having to revert to an older working version on a repeated basis, or chronically having to re-inter your registration data every time you reboot or log off until they 'fix' it AGAIN!!! Then Oupost. One other thing: Outpost is majore BLOATWARE. They are trying to be everything, including the kitchen sink. On the other hand, Sygate is a firewall, nothing but a firewall, & always works as a firewall. Having tried them all over the years, I still find myself using & installing on customers computers Sygate Firwall Pro.
IMHO
isepiq