Intent IQ
44,559 websites

Intent IQ costs money

https://www.intentiq.com/

Intent IQ enables its partners identify clients and prospects who interact with their sites, apps and their brick and mortar establishments, whether across their various screens or in person.

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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 Quantcast is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Intent IQ is clearly lagging behind, losing to Quantcast in all segments.

Websites Categories

1 Quantcast has better usage coverage in more websites categories. Including Arts & Entertainment, Games, Science & Education, Computers Electronics & Technology and 20 other categories.

2 Intent IQ hasn't got a lead over Quantcast in any websites category.

Geography

1 Quantcast is leading in most countries, including United States, United Kingdom, Japan, France and 152 other countries.

2 Intent IQ is leading in Indonesia, China, Thailand, South Korea and 3 other countries.