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, Arts & Entertainment, Computer & Electronics, Internet & Telecom and 27 other categories.
mParticle is leading in Movies, Music & Audio, Finance, Banking and 9 other categories.
Observer is leading in most countries, including Russia, United Kingdom, Brazil, Egypt and 6 other countries.
mParticle is leading in United States, Algeria, India and Viet Nam.