OpinionLab is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
tvtag has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Music & Audio, Movies and 61 other categories.
OpinionLab is leading in Business & Industry, Travel, Tourism, Transportation & Logistics and 46 other categories.
OpinionLab is leading in most countries, including United States, United Kingdom, Canada, Russia and 51 other countries.
tvtag is leading in Philippines, Peru, Pakistan, El Salvador and one other country.