Alooma is leading in Top 10K Sites and Top 100K Sites.
Observer has better usage coverage in more websites categories. Including Business & Industry, Computer & Electronics, Arts & Entertainment, People & Society and 24 other categories.
Alooma is leading in Shopping, Telecommunications, Clothing, TV & Video and one other category.
Observer is leading in most countries, including Russia, Canada, United Kingdom, Netherlands and 7 other countries.
Alooma is leading in United States.