I think it might be a useful reference for everyone to have a Free vs Paid product comparison (for the same company). Please note this is NOT about comparing Free product A with Paid for product B. Its about comparing whats in Free version of product A vs Paid version of Product A
Some examples are:
Avira Free vs Paid Feature comparison
avast! Free vs Paid Feature comparison
AVG Free vs Paid Feature comparison
SuperAntiSpyware Free vs Paid Feature comparison
SUPERAntiSpyware Free and Professional Comparison
a-squared Free vs Paid Feature comparison
PCTools Free vs Paid Feature comparison
PCTools ThreatFire Free vs ThreatFire Pro vs Spyware Doctor with AntiVirus
PCTools Spyware Doctor Free Starter Edition vs Full Version (Paid)
Malwarebytes Free vs Paid Feature comparison Free does not have realtime protection, scheduled scanning, and scheduled updating(this has been provided for ease of read)
BitDefender Free vs BitDefender Paid for
Lavasoft Ad-Aware Free vs Ad-Aware Plus vs Ad-Aware Pro
Online Armor Free vs Online Armor Premium vs Online Armor ++
Outpost Firewall Free vs Outpost Firewall Pro
Sunbelt Personal Firewall free vs Sunbelt Personal Firewall full
ZoneAlarm Free Firewall vs ZoneAlarm Pro (and other paid products)
GeSWall Freeware vs GeSWall Professional Edition
DriveSentry 3.1 FREE Antivirus Licensing. DriveSentry Security Suite (paid) includes DriveSentry Desktop and DriveSentry GoAnywhere.
Prevx 3.0 Free Detection vs Prevx 3.0 + Removal vs Prevx 3.0 + Realtime (click Product Comparison)
SpywareBlaster Free vs SpywareBlaster AutoUpdate
WinPatrol Free vs WinPatrol PLUS
So pls post the other product comparisons here so that we can create a single location for the benefit of everyone.
Mods: you can pls update this post with new links or feature list etc.
Thanks
Melih