1
AddThis is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.
2
In terms of market share, Google +1 Button is clearly lagging behind, losing to AddThis in all segments.
1
AddThis has better usage coverage in more websites categories. Including Science & Education, Arts & Entertainment, Adult, Health and 10 other categories.
2
Google +1 Button is leading in Computers Electronics & Technology, Travel & Tourism, Food & Drink, Games and 6 other categories.
1
AddThis is leading in most countries, including United States, United Kingdom, France, Italy and 138 other countries.
2
Google +1 Button is leading in Japan, Russia, Taiwan, Poland and 16 other countries.