Olark
15,414 websites

Olark offers both free and paid options

http://www.olark.com/

Olark is a lightweight tool to chat with visitors to your website using your existing instant messaging client. Visitors to your website appear as buddies on your Buddy list, their messages to you appear as IMs.

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Provide Support
5,275 websites

Provide Support is free to use

http://providesupport.com/

Since August of 2003, Provide Support has been helping businesses improve their sales and customer service on the Internet. Our mission is to empower companies and organizations with cutting edge communications technology. We are commit...

Market Share by Top Websites

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

2 In terms of market share, Provide Support is clearly lagging behind, losing to Olark in all segments.

Websites Categories

1 Olark has better usage coverage in more websites categories. Including Computers Electronics & Technology, Business & Consumer Services, Science & Education, Lifestyle and 19 other categories.

2 Provide Support is leading in Reference Materials.

Geography

1 Olark is leading in most countries, including United States, United Kingdom, Canada, India and 105 other countries.

2 Provide Support is leading in China, Greece, Egypt, Saudi Arabia and 18 other countries.