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, Business & Industry, News & Media and 38 other categories.
ReferLocal is leading in Newspapers, Chats & Forums, Computer & Electronics and Transportation & Logistics.
Optimatic is leading in most countries, including United States, Algeria, Israel, Venezuela and 20 other countries.
ReferLocal is leading in Germany, Austria and Romania.