Kayako is leading in Top 100K Sites and Top 1M Sites.
Kayako has better usage coverage in more websites categories. Including Career & Education, Jobs & Employment, Business & Industry, Shopping and 68 other categories.
Klick2Contact hasn't got a lead over Kayako in any websites category.
Kayako is leading in most countries, including United States, United Kingdom, Australia, India and 69 other countries.
Klick2Contact is leading in Slovakia and Serbia.