Google+ Platform
1,016,622 websites

Google+ Platform is free to use

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

Google+ platform websites integration using the Google+ platform tag.

VS

Pinterest
292,411 websites

Pinterest is free to use

http://pinterest.com/

Pinterest is a social networking site with a visually-pleasing virtual pinboard interface. Users collect photos and link to products they love, creating their own pinboards and following the pinboards of other people whom they find interest...

Market Share by Top Websites

1 Google+ Platform is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Pinterest is clearly lagging behind, losing to Google+ Platform in all segments.

Websites Categories

1 Google+ Platform has better usage coverage in more websites categories. Including Computers Electronics & Technology, Arts & Entertainment, Science & Education, Games and 18 other categories.

2 Pinterest is leading in Food & Drink and Home & Garden.

Geography

1 Google+ Platform is leading in most countries, including United States, Japan, India, Brazil and 162 other countries.

2 Pinterest hasn't got a lead over Google+ Platform in any country.