Ad Spirit is leading in Top 100K Sites and Top 1M Sites.
Ad Spirit has better usage coverage in more websites categories. Including Sports, Soccer, Travel, Health and 52 other categories.
Simply is leading in Business & Industry, Arts & Entertainment, News & Media, People & Society and 47 other categories.
Simply is leading in most countries, including Italy, Spain, United Kingdom, United States and 42 other countries.
Ad Spirit is leading in Germany, Austria, Switzerland, Poland and 8 other countries.