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 ...

VS

Hull
348 websites

Hull offers both free and paid options

http://www.hull.io/

Hull is a social infrastructure as a service, that lets you build social web applications with open, reusable components.

Market Share by Top Websites

1 Buffer Button is leading in The Entire Web.

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

Websites Categories

1 Buffer Button has better usage coverage in more websites categories. Including Computers Electronics & Technology, Science & Education, Health, Travel & Tourism and 15 other categories.

2 Hull is leading in Business & Consumer Services, Vehicles, Lifestyle, E-commerce & Shopping and one other category.

Geography

1 Buffer Button is leading in most countries, including United States, Italy, Spain, India and 58 other countries.

2 Hull is leading in United Kingdom, Bosnia and Herzegovina, Egypt, Austria and 3 other countries.