Optimatic is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
zapunited has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Adult, Photography and 57 other categories.
Optimatic is leading in Games, Home & Garden, Online, Finance and 7 other categories.
zapunited is leading in most countries, including India, Germany, Russia, Morocco and 11 other countries.
Optimatic is leading in United States, United Kingdom, Israel, Canada and 7 other countries.