Peerius is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
WordStream has better usage coverage in more websites categories. Including Business & Industry, People & Society, Relationships & Dating, Autos & Vehicles and 41 other categories.
Peerius is leading in Shopping, Clothing, Home & Garden, Consumer Electronics and 31 other categories.
Peerius is leading in most countries, including United Kingdom, Germany, United States, Switzerland and 32 other countries.
WordStream is leading in Netherlands, Canada, Mexico, Belgium and 9 other countries.