Peerius is leading in 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 50 other categories.
Peerius is leading in Shopping, Clothing, Home & Garden, Consumer Electronics and 19 other categories.
Peerius is leading in most countries, including United Kingdom, Germany, France, Austria and 23 other countries.
WordStream is leading in United States, Mexico, Singapore, South Africa and 3 other countries.