MooTools is leading in Top 100K Sites, Top 1M Sites and The Entire Web.
SocketIO is leading in Top 10K Sites.
MooTools has better usage coverage in more websites categories. Including Science & Education, Computers Electronics & Technology, Law & Government, Health and 19 other categories.
SocketIO is leading in Adult.
MooTools is leading in most countries, including Russia, United States, Germany, Italy and 162 other countries.
SocketIO hasn't got a lead over MooTools in any country.