Opta Widget is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Vovici has better usage coverage in more websites categories. Including People & Society, Business & Industry, Career & Education, Arts & Entertainment and 62 other categories.
Opta Widget is leading in Sports, Soccer, News & Media, Newspapers and 12 other categories.
Opta Widget is leading in most countries, including Spain, United Kingdom, Italy, Australia and 34 other countries.
Vovici is leading in United States, India, Canada, China and 15 other countries.