Alooma is leading in Top 10K Sites and Top 100K Sites.
Vizu has better usage coverage in more websites categories. Including People & Society, News & Media, Arts & Entertainment, Technology News and 77 other categories.
Alooma is leading in Telecommunications.
Vizu is leading in most countries, including United States, Indonesia, Canada, India and 22 other countries.
Alooma is leading in United Kingdom.