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 59 other categories.
Opta Widget is leading in Sports, Soccer, News & Media, Newspapers and 20 other categories.
Opta Widget is leading in most countries, including United Kingdom, Spain, Italy, Australia and 44 other countries.
Vovici is leading in United States, Canada, India, China and 7 other countries.