ClickDensity
84 websites

ClickDensity offers both free and paid options

http://www.clickdensity.com/

Gain an immediate and in-depth understanding of how users are really using and interacting with your website or application through Clickdensity, the original, award-winning heat map analytics tool.

VS

Sailthru Horizon
316 websites

Sailthru Horizon is free to use

http://getstarted.sailthru.com/

Third, enter your full Horizon subdomain, i.e. horizon.yourdomain.com, under the "Horizon Subdomain" field in your Sailthru account settings.

Market Share by Top Websites

1 Sailthru Horizon is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

2 In terms of market share, ClickDensity is clearly lagging behind, losing to Sailthru Horizon in all segments.

Websites Categories

1 Sailthru Horizon has better usage coverage in more websites categories. Including News & Media, Food & Drink, Arts & Entertainment, Travel & Tourism and 15 other categories.

2 ClickDensity is leading in Computers Electronics & Technology, Vehicles, E-commerce & Shopping and Games.

Geography

1 Sailthru Horizon is leading in most countries, including United States, United Kingdom, Canada, Hungary and 24 other countries.

2 ClickDensity is leading in China, Japan, Ukraine, France and 10 other countries.