IndieClick is leading in Top 100K Sites and Top 1M Sites.
IndieClick has better usage coverage in more websites categories. Including Arts & Entertainment, Music & Audio, People & Society, Shopping and 37 other categories.
OpenX OpenAds is leading in Sports, News & Media, Technology News, Soccer and 3 other categories.
IndieClick is leading in most countries, including United States, United Kingdom, Canada, Germany and 21 other countries.
OpenX OpenAds is leading in Ukraine.