mParticle is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Observer has better usage coverage in more websites categories. Including Business & Industry, Computer & Electronics, Arts & Entertainment, Internet & Telecom and 29 other categories.
mParticle is leading in Banking, Finance, Movies, Domain Names & Register and 8 other categories.
Observer is leading in most countries, including Russia, United Kingdom, Ukraine, Switzerland and 8 other countries.
mParticle is leading in United States, France and El Salvador.