OpinionLab is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
OpinionLab has better usage coverage in more websites categories. Including Travel, Accommodation & Hotels, Shopping, Tourism and 56 other categories.
Viadeo is leading in Business & Industry, People & Society, Career & Education, Internet & Telecom and 54 other categories.
OpinionLab is leading in most countries, including United States, Canada, United Kingdom, Germany and 73 other countries.
Viadeo is leading in France, Belgium, Switzerland, Spain and 28 other countries.