OpinionLab is leading in Top 10K Sites and Top 100K Sites.
Trumba has better usage coverage in more websites categories. Including Career & Education, News & Media, Education, Business & Industry and 74 other categories.
OpinionLab is leading in Shopping, Internet & Telecom, Finance, Transportation & Logistics and 36 other categories.
OpinionLab is leading in most countries, including United Kingdom, Russia, Germany, France and 42 other countries.
Trumba is leading in United States, Canada, Singapore, Australia and 25 other countries.