Market Share by Top Websites

1 Postmark is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, ConvertKit is clearly lagging behind, losing to Postmark in all segments.

Websites Categories

1 Postmark has better usage coverage in more websites categories. Including Internet & Telecom, Business & Industry, Computer & Electronics, People & Society and 233 other categories.

2 ConvertKit is leading in Home Improvement, Guides & Reviews and Ethnic & Regional.


1 Postmark is leading in most countries, including United States, Colombia, United Kingdom, Canada and 209 other countries.

2 ConvertKit hasn't got a lead over Postmark in any country.