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 24 other categories.
Alooma is leading in TV & Video, Online Marketing and Telecommunications.
Observer is leading in most countries, including United States, Russia, Japan, Germany and 6 other countries.
Alooma is leading in Australia and United Kingdom.