Alooma is leading in Top 10K Sites and Top 100K Sites.
Observer has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, Computer & Electronics, People & Society and 22 other categories.
Alooma is leading in Telecommunications, Online Marketing and TV & Video.
Observer is leading in most countries, including United States, United Kingdom, Russia, Germany and 8 other countries.
Alooma is leading in Canada.