AWStats
1,600 websites

AWStats is free to use

http://awstats.sourceforge.net/

AWStats is a free powerful and featureful tool that generates advanced web, streaming, ftp or mail server statistics, graphically. This log analyzer works as a CGI or from command line and shows you all possible information your log contain...

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ChannelAdvisor
140 websites

ChannelAdvisor offers both free and paid options

http://www.channeladvisor.com/

ChannelAdvisor is a leading provider of cloud-based e-commerce solutions that enable retailers and manufacturers to increase the scale and profitability of their global sales through dozens of online channels including Amazon, Google, eBay,...

Market Share by Top Websites

1 AWStats is leading in Top 1M Sites and The Entire Web.

2 In terms of market share, ChannelAdvisor is clearly lagging behind, losing to AWStats in all segments.

Websites Categories

1 AWStats has better usage coverage in more websites categories. Including Computers Electronics & Technology, Science & Education, Law & Government, Arts & Entertainment and 17 other categories.

2 ChannelAdvisor is leading in Lifestyle, Home & Garden and Sports.

Geography

1 AWStats is leading in most countries, including France, United States, South Korea, Netherlands and 75 other countries.

2 ChannelAdvisor is leading in Sri Lanka, Colombia and Croatia.