1
FreeCall is leading in Top 1M Sites and The Entire Web.
2
Callback Killer is leading in Top 100K Sites.
1
Callback Killer has better usage coverage in more websites categories. Including Heavy Industry & Engineering, Home & Garden, Vehicles, Business & Consumer Services and 8 other categories.
2
FreeCall is leading in Travel & Tourism, Food & Drink, Science & Education, Law & Government and 7 other categories.
1
FreeCall is leading in most countries, including United States, Bulgaria, Brazil, India and 109 other countries.
2
Callback Killer is leading in Russia, Ukraine, Belarus, Kazakhstan and one other country.