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, Travel and 76 other categories.
Mercent is leading in Clothing, Health, Home & Garden, Games and 47 other categories.
OMG is leading in most countries, including India, United Kingdom, Russia, Singapore and 32 other countries.
Mercent is leading in United States, Canada, France, Chile and 25 other countries.