In terms of market share, Unister is clearly lagging behind, losing to Vertical Leap in all segments.
Unister has better usage coverage in more websites categories. Including Travel, Tourism, Investing, Finance and 4 other categories.
Vertical Leap hasn't got a lead over Unister in any websites category.
Unister is leading in most countries, including Germany, Austria, Switzerland, Poland and 5 other countries.
Vertical Leap is leading in United Kingdom.