iPerceptions is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Snap has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, News & Media, Internet & Telecom and 97 other categories.
iPerceptions is leading in Autos & Vehicles, Car Buying, Business & Industry, Shopping and 78 other categories.
Snap is leading in most countries, including Japan, France, Brazil, Germany and 51 other countries.
iPerceptions is leading in United States, Canada, United Kingdom, Australia and 35 other countries.