Blueshift 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 22 other categories.
Blueshift is leading in Shopping, Career & Education, Coupons, Finance and 20 other categories.
Blueshift is leading in most countries, including India, United States, United Kingdom, Germany and 11 other countries.
Observer is leading in Russia, Canada, Japan, Netherlands and 5 other countries.