ConvertKit is leading in Top 100K Sites and Top 1M Sites.
ConvertKit has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, People & Society, Internet & Telecom and 114 other categories.
Responder is leading in Health, Shopping, Alternative & Natural Medicine, Law & Government and 27 other categories.
ConvertKit is leading in most countries, including United States, United Kingdom, Canada, Australia and 78 other countries.
Responder is leading in Israel.