Optimatic is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Optimatic has better usage coverage in more websites categories. Including Games, Arts & Entertainment, Video Games, Online and 21 other categories.
ReferLocal is leading in Business & Industry, People & Society, Travel, Tourism and 2 other categories.
Optimatic is leading in most countries, including United States, Algeria, Canada, Poland and 20 other countries.
ReferLocal hasn't got a lead over Optimatic in any country.