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 47 other categories.
Peerius is leading in Shopping, Clothing, Home & Garden, Food & Drink and 20 other categories.
Peerius is leading in most countries, including United Kingdom, Germany, France, Netherlands and 21 other countries.
WordStream is leading in Mexico, Bulgaria, Canada, Peru and 2 other countries.