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 26 other categories.
Alooma is leading in Telecommunications, Online Marketing and TV & Video.
Observer is leading in most countries, including United States, Russia, France, Ukraine and 8 other countries.
Alooma is leading in Australia and Canada.