Google+ Sign-In Button
trend
88,905 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.

VS

OpenID
trend
487,835 websites

OpenID is free to use

http://openid.net

The website supports openid single digital identity via the use of OpenID.

Market Share by Top Websites

1 OpenID is leading in The Entire Web.

2 Google+ Sign-In Button is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

Websites Categories

1 OpenID has better usage coverage in more websites categories. Including Science & Education, Community & Society, Arts & Entertainment, Computers Electronics & Technology and 19 other categories.

2 Google+ Sign-In Button is leading in Business & Consumer Services.

Geography

1 OpenID is leading in most countries, including United States, United Kingdom, Indonesia, Spain and 149 other countries.

2 Google+ Sign-In Button is leading in Nigeria, Rwanda, Benin, Somalia and one other country.