FeedPerfect is leading in Top 100K Sites and Top 1M Sites.
WordStream has better usage coverage in more websites categories. Including People & Society, Relationships & Dating, Autos & Vehicles, Internet & Telecom and 40 other categories.
FeedPerfect is leading in Shopping, Business & Industry, Home & Garden, Clothing and 38 other categories.
FeedPerfect is leading in most countries, including United States, United Kingdom, Russia, Netherlands and 24 other countries.
WordStream is leading in Mexico, Switzerland, South Africa, Singapore and one other country.