Opta Widget is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Opta Widget has better usage coverage in more websites categories. Including Sports, Soccer, News & Media, Business & Industry and 35 other categories.
Qualifio is leading in Arts & Entertainment, Music & Audio, Shopping, Magazines & E-Zines and 14 other categories.
Opta Widget is leading in most countries, including United Kingdom, Spain, Italy, United States and 49 other countries.
Qualifio is leading in France, Belgium, Netherlands, Luxembourg and one other country.