Piwik
339,453 websites

Piwik offers both free and paid options

http://piwik.org

Piwik is an open source analytics platform currently used by individuals, companies and governments all over the world. With Piwik, your data will always be yours. Learn why Piwik is the right web analytics tool for you below.

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Quantcast
274,085 websites

Quantcast is free to use

http://www.quantcast.com/

Quantcast helps advertisers and publishers better understand, find and access targeted audiences in real-time. Marketers use Quantcast to amplify their targeting and reach consumers who look just like their best performing customers with un...

Market Share by Top Websites

1 Piwik is leading in The Entire Web.

2 Quantcast is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

Websites Categories

1 Quantcast has better usage coverage in more websites categories. Including Arts & Entertainment, Games, News & Media, Community & Society and 9 other categories.

2 Piwik is leading in Science & Education, Computers Electronics & Technology, Law & Government, Health and 7 other categories.

Geography

1 Piwik is leading in most countries, including Germany, France, Japan, Italy and 89 other countries.

2 Quantcast is leading in United States, Spain, Canada, India and 67 other countries.