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, Business & Industry, News & Media, Arts & Entertainment and 38 other categories.
ReferLocal is leading in People & Society, Tourism, Transportation & Logistics, Chats & Forums and one other category.
Optimatic is leading in most countries, including United States, India, Germany, United Kingdom and 31 other countries.
ReferLocal is leading in China.