Ad Spirit is leading in Top 100K Sites and Top 1M Sites.
Ad Spirit has better usage coverage in more websites categories. Including Business & Industry, Sports, Soccer, Shopping and 64 other categories.
Tailsweep is leading in Arts & Entertainment, People & Society, Social Sciences, Science and 27 other categories.
Tailsweep is leading in most countries, including Sweden, United States, United Kingdom, Russia and 24 other countries.
Ad Spirit is leading in Germany, Austria, Switzerland, Spain and 13 other countries.