Marktest is leading in Top 10K Sites and Top 100K Sites.
PercentMobile has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, People & Society, Shopping and 64 other categories.
Marktest is leading in Newspapers.
PercentMobile is leading in most countries, including United States, Spain, Brazil, Great Britain and 36 other countries.
Marktest is leading in Portugal and Israel.