Segment is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Topsy has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Business & Industry, Internet & Telecom and 170 other categories.
Segment is leading in Social Network, Mobile Developers, Sports, Email and 11 other categories.
Topsy is leading in most countries, including Russia, Japan, Brazil, Spain and 66 other countries.
Segment is leading in United States, United Kingdom, Australia, Canada and 30 other countries.