Unister is leading in Top 100K Sites.
Unister has better usage coverage in more websites categories. Including Travel, Tourism, Internet & Telecom, Search Engine and 7 other categories.
Vertical Leap hasn't got a lead over Unister in any websites category.
Unister is leading in most countries, including Germany, Ukraine, Switzerland, Austria and 6 other countries.
Vertical Leap is leading in United Kingdom.