Facebook Login
trend
85,174 websites

Facebook Login is free to use

https://developers.facebook.com/products/login/

Use your Facebook account to sign into other sites and see what your friends are doing across the web.

VS

Google+ Sign-In Button
trend
86,606 websites

Google+ Sign-In Button is free to use

https://developers.google.com/+/web/signin/

Google+ Sign-In button allows users to authenticate on websites using their Google+ account.

Market Share by Top Websites

1 Google+ Sign-In Button is leading in Top 10K Sites and The Entire Web.

2 Facebook Login is leading in Top 100K Sites and Top 1M Sites.

Websites Categories

1 Facebook Login has better usage coverage in more websites categories. Including Arts & Entertainment, Games, Lifestyle, Sports and 9 other categories.

2 Google+ Sign-In Button is leading in Computers Electronics & Technology, Science & Education, Jobs & Career, Business & Consumer Services and 7 other categories.

Geography

1 Google+ Sign-In Button is leading in most countries, including United States, Japan, India, United Kingdom and 88 other countries.

2 Facebook Login is leading in South Korea, France, Brazil, Italy and 55 other countries.