Features	SkyGlue with Google Analytics	Google Analytics	ClickTale	KissMetrics
Data Collection	Automatic Click Tracking		Developer needed		Developer needed
	Automatic Form tracking		Developer needed	in $290+ plans	Developer needed
	Automatic Individual tracking		Developer needed
	Visual interface for setup
	Automatic identification of HTML elements
	Pageview Tracking				Disabled by default
	Automatic Browser type tracking				Developer needed
	Lifetime Value Tracking	easy setup in web portal			, Developer needed
	Registered User tracking	Tracked anonymously			Tracked by UserId
	Associate Registered Users across browsers/machines
Visitor Activity Timeline	Individual visitor activity display
	Full activity display				only pre-defined events
	Visitor activities across sessions
	Visitor activity display format	Event List	N/A	Movie	Event List
	Visitor activity data storage	2 years	2 years	30 days	No limit
Other Reports	Conversion Funnel Reports
	Cohort Analysis (Retention reports)
	Individual Visitor Profiles
	Clickstream Analysis
	Click Heatmap
Visitor Segment	Basic Segment
	Segment by click events			in $290+ plans for predefined events	for predefined events
	Advanced Segment
Integration	Integration with Google Adwords
	Track variations of A/B testing
	Track variations of multivariable testing
Cost	Unlimited Domains Tracking
	Eliminate development cost after intial copy/paste setup
	Price	$19 for 100,000 pageviews per month	Free for the tool. Additional developer cost.	$290 for 80,000 pageviews recorded per month	$29 for 100,000 events per month

ClickTale has powerful mouse movement tracking and scroll tracking, which are not shown in the chart.
Chart last updated February 21 2012, and accurate to the best of our knowledge. If you believe anything to be incorrect, please contact us.