Ad Spirit is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Ad Spirit has better usage coverage in more websites categories. Including Sports, Business & Industry, Soccer, Travel and 63 other categories.
Tailsweep is leading in Arts & Entertainment, People & Society, Science, Social Sciences and 28 other categories.
Tailsweep is leading in most countries, including Sweden, United States, Russia, United Kingdom and 31 other countries.
Ad Spirit is leading in Germany, Austria, Switzerland, Bulgaria and 6 other countries.