Optimatic is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Vocus has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, People & Society, News & Media and 91 other categories.
Optimatic is leading in Games, Video Games, Cooking & Recipes, Online and 8 other categories.
Vocus is leading in most countries, including United States, Canada, United Kingdom, India and 35 other countries.
Optimatic is leading in Israel, Algeria, Poland, Czech Republic and 2 other countries.