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.

VS

Yieldbot
2,363 websites

Yieldbot is free to use

http://www.yieldbot.com

Yieldbot captures and organizes the realtime intent existing in web publishers and makes it available to advertisers so they can match offers and ads at the exact moment consumers are most open to receiving relevant marketing.

Market Share by Top Websites

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

2 In terms of market share, WhosOn is clearly lagging behind, losing to Yieldbot in all segments.

Websites Categories

1 Yieldbot has better usage coverage in more websites categories. Including Arts & Entertainment, News & Media, Science & Education, Food & Drink and 16 other categories.

2 WhosOn is leading in Finance, Business & Consumer Services, Heavy Industry & Engineering and Law & Government.

Geography

1 Yieldbot is leading in most countries, including United States, Russia, France, Ukraine and 60 other countries.

2 WhosOn is leading in United Kingdom, Greece, Ireland, Denmark and 12 other countries.