Photoslurp is leading in Top 100K Sites and Top 1M Sites.
w3roi has better usage coverage in more websites categories. Including Internet & Telecom, Business & Industry, Computer & Electronics, Health and 27 other categories.
Photoslurp is leading in Shopping, Clothing, Jewelry, Adult and 6 other categories.
Photoslurp is leading in most countries, including Spain, Netherlands, United Kingdom, Germany and 4 other countries.
w3roi is leading in United States, China, India, Australia and 3 other countries.