Mercent is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
OMG has better usage coverage in more websites categories. Including Shopping, Coupons, Business & Industry, Arts & Entertainment and 71 other categories.
Mercent is leading in Clothing, Health, Home & Garden, Games and 46 other categories.
Mercent is leading in most countries, including United States, Canada, Germany, Spain and 34 other countries.
OMG is leading in India, United Kingdom, Russia, Poland and 28 other countries.