Optimatic is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Optimatic has better usage coverage in more websites categories. Including Business & Industry, Games, Arts & Entertainment, News & Media and 43 other categories.
ReferLocal is leading in Tourism, Transportation & Logistics, Chats & Forums, Newspapers and one other category.
Optimatic is leading in most countries, including United States, Israel, Denmark, Mexico and 37 other countries.
ReferLocal is leading in Austria.