Intent IQ
44,559 websites

Intent IQ costs money

https://www.intentiq.com/

Intent IQ enables its partners identify clients and prospects who interact with their sites, apps and their brick and mortar establishments, whether across their various screens or in person.

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Optimizely
162,903 websites

Optimizely offers both free and paid options

http://www.optimizely.com/

Simple, fast, and powerful. Optimizely is a dramatically easier way for you to improve your website through A/B testing. Create an experiment in minutes with our easy-to-use visual interface with absolutely no coding or engineering required...

Market Share by Top Websites

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

2 Intent IQ is leading in Top 1M Sites.

Websites Categories

1 Optimizely has better usage coverage in more websites categories. Including Games, Arts & Entertainment, Computers Electronics & Technology, Vehicles and 19 other categories.

2 Intent IQ is leading in News & Media.

Geography

1 Optimizely is leading in most countries, including United States, United Kingdom, Canada, Germany and 129 other countries.

2 Intent IQ is leading in Indonesia, China, Brazil, Vietnam and 26 other countries.