JS-Kit
648 websites

JS-Kit is free to use

http://www.aboutecho.com/

Echo provides a real-time platform that enables the rapid implementation and scale of applications for social TV, social music, social news, social sports and social commerce. Brands can leverage the Echo platform to transform their static ...

VS

Qualifio
60 websites

Qualifio costs money

http://www.qualifio.com

Qualifio provides a wide range of interactions : sweepstakes, quizzes, polls, photo & video contests, personality tests and more.

Market Share by Top Websites

1 JS-Kit is leading in The Entire Web.

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

Websites Categories

1 JS-Kit has better usage coverage in more websites categories. Including Computers Electronics & Technology, Arts & Entertainment, Community & Society, Science & Education and 18 other categories.

2 Qualifio is leading in Lifestyle.

Geography

1 JS-Kit is leading in most countries, including United States, Brazil, India, Japan and 58 other countries.

2 Qualifio is leading in France, Netherlands and Belgium.