Grapeshot
32 websites

Grapeshot is free to use

http://www.grapeshot.co.uk

Grapeshot is a software company using advanced probability algorithms to optimise the placement of content and advertisements online. We help publishers like Mail Online, Reuters, Telegraph and Microsoft’s Mi9 to create virtual channels...

VS

WhosOn
532 websites

WhosOn offers both free and paid options

http://www.whoson.com/

Track, Engage and Chat to your web visitors in real time. Hosted and On Premises live chat and visitor tracking software for businesses of all sizes.

Market Share by Top Websites

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

2 Grapeshot is leading in Top 10K Sites.

Websites Categories

1 WhosOn has better usage coverage in more websites categories. Including Home & Garden, Finance, Computers Electronics & Technology, Health and 14 other categories.

2 Grapeshot is leading in Hobbies & Leisure and Gambling.

Geography

1 WhosOn is leading in most countries, including United Kingdom, United States, Canada, France and 47 other countries.

2 Grapeshot hasn't got a lead over WhosOn in any country.