Kelkoo
24 websites

Kelkoo is free to use

http://developer.kelkoo.com

The Kelkoo Shopping and Travel APIs uses Kelkoo data for shopping and travel price comparison. Search the database of thousands of merchants and also get user reviews. Search for products by keyword, sort results, compare products and price...

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Spark Studios
108 websites

Spark Studios is free to use

http://sparkstudios.com/

Spark : Real Traffic System. A Premium Advertising Network. SIGN UPLOG ... Copyright © 2010 Spark Studios. 10811 Washington Boulevard, 4th Floor Culver ...

Market Share by Top Websites

2 Kelkoo is leading in Top 100K Sites and Top 1M Sites.

Websites Categories

1 Spark Studios has better usage coverage in more websites categories. Including Arts & Entertainment, Computer & Electronics, People & Society, Video Games and 18 other categories.

2 Kelkoo is leading in Shopping, Business & Industry and Children.

Geography

1 Kelkoo is leading in most countries, including Switzerland, Czech Republic, Denmark, Finland and 10 other countries.

2 Spark Studios is leading in United States.