Optimatic is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Optimatic has better usage coverage in more websites categories. Including Arts & Entertainment, Games, Video Games, Fashion & Modeling and 23 other categories.
ReferLocal is leading in Business & Industry, Tourism, Travel, People & Society and 2 other categories.
Optimatic is leading in most countries, including United States, Canada, Israel, Algeria and 10 other countries.
ReferLocal hasn't got a lead over Optimatic in any country.