Korrelate is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
WidgetBucks has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Computer & Electronics, Music & Audio and 114 other categories.
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WidgetBucks is leading in most countries, including India, United Kingdom, France, Germany and 20 other countries.
Korrelate is leading in United States, Canada, Mexico, China and 6 other countries.