Buffer Button
689 websites

Buffer Button is free to use

http://bufferapp.com/extras/button

Buffer Button. Add this button to your website or blog to let people share your content on Twitter and Facebook seamlessly. They can share right away or at a ...

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WidgetBox
2,091 websites

WidgetBox offers both free and paid options

http://widgetbox.com

Widgetbox was a San Francisco, California based company that enabled businesses to create and deliver applications to their customers. Widgetbox formally discontinued their service on March 28, 2014.

Market Share by Top Websites

1 WidgetBox is leading in Top 1M Sites and The Entire Web.

2 In terms of market share, Buffer Button is clearly lagging behind, losing to WidgetBox in all segments.

Websites Categories

1 WidgetBox has better usage coverage in more websites categories. Including Science & Education, Community & Society, Arts & Entertainment, Games and 18 other categories.

2 Buffer Button is leading in Computers Electronics & Technology and Business & Consumer Services.

Geography

1 WidgetBox is leading in most countries, including United States, India, Malaysia, Spain and 74 other countries.

2 Buffer Button is leading in Vietnam, Turkey, South Korea, Bulgaria and 12 other countries.