mParticle is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
w3roi has better usage coverage in more websites categories. Including Internet & Telecom, Business & Industry, Computer & Electronics, Health and 27 other categories.
mParticle is leading in Arts & Entertainment, Finance, Banking, Movies and 11 other categories.
w3roi is leading in most countries, including China, Switzerland, Sweden, Belgium and 5 other countries.
mParticle is leading in United States, France, Russia, Brazil and one other country.