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 22 other categories.
Qualifio is leading in Arts & Entertainment, Music & Audio, TV & Video, Health and 15 other categories.
Opta Widget is leading in most countries, including Spain, United Kingdom, Italy, Australia and 40 other countries.
Qualifio is leading in France, Belgium, Netherlands, Switzerland and 4 other countries.