1
Tell-a-Friend is leading in Top 1M Sites.
2
Questback is leading in Top 100K Sites.
1
Tell-a-Friend has better usage coverage in more websites categories. Including Science & Education, Arts & Entertainment, Community & Society, Computers Electronics & Technology and 14 other categories.
2
Questback is leading in News & Media, Pets & Animals and Vehicles.
1
Tell-a-Friend is leading in most countries, including United States, India, United Kingdom, Canada and 43 other countries.
2
Questback is leading in Norway, Sweden, Croatia and Denmark.