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, Arts & Entertainment, Travel and 78 other categories.
Mercent is leading in Clothing, Games, Home & Garden, Video Games and 29 other categories.
Mercent is leading in most countries, including United States, Canada, France, Finland and 48 other countries.
OMG is leading in India, United Kingdom, Indonesia, Malaysia and 20 other countries.