Foursquare Widget is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Foursquare Widget has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, Travel, People & Society and 98 other categories.
iWiW Widgets is leading in Autos & Vehicles, Finance, Humor, Online and 18 other categories.
Foursquare Widget is leading in most countries, including United States, Brazil, Russia, France and 59 other countries.
iWiW Widgets is leading in Hungary, Romania, Switzerland and Slovakia.