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 48 other categories.
Peerius is leading in Shopping, Clothing, Home & Garden, Consumer Electronics and 24 other categories.
Peerius is leading in most countries, including United Kingdom, Germany, Austria, France and 23 other countries.
WordStream is leading in United States, Canada, Mexico, Bulgaria and 7 other countries.