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...
In terms of market share, Kelkoo is clearly lagging behind, losing to Nster in all segments.
Kelkoo has better usage coverage in more websites categories. Including Shopping and Business & Industry.
Nster hasn't got a lead over Kelkoo in any websites category.
Kelkoo is leading in most countries, including Germany, Italy, Portugal, Spain and one other country.
Nster is leading in United States.