ConvertKit is leading in Top 100K Sites and Top 1M Sites.
ConvertKit has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Internet & Telecom, Marketing & Advertising and 104 other categories.
Responder is leading in Business & Industry, Health, Shopping, Alternative & Natural Medicine and 28 other categories.
ConvertKit is leading in most countries, including United States, United Kingdom, Canada, Australia and 73 other countries.
Responder is leading in Israel and Georgia.