ActiveCampaign vs MailerSend

ActiveCampaign and MailerSend (Email service that delivers) both appear on the Smoower Developer Ecosystem Index.

MailerSend (rank #401) holds a narrow lead over ActiveCampaign (rank #485) on the overall Smoower ecosystem score (41 vs 38). The gap of 3 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), ActiveCampaign is slightly ahead of MailerSend. On education (docs, guides and learning material for developers), MailerSend is ahead of ActiveCampaign. On community (issue response, PR reviews and discussion health), ActiveCampaign is slightly ahead of MailerSend. On reach (how visible the ecosystem is beyond its own repos), ActiveCampaign is slightly ahead of MailerSend. On momentum (release cadence and how fast the ecosystem moves), MailerSend is ahead of ActiveCampaign.

ActiveCampaign carries 6,653 GitHub stars across 88 public repos, with 6 repositories active in the last 90 days and 3 external contributors on record. MailerSend shows 499 stars across 22 public repos, 12 active in the last 90 days and 7 external contributors. The star gap on its own does not decide the comparison, but ActiveCampaign's footprint is roughly 13.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

ActiveCampaign is the stronger read for anyone weighting reach. MailerSend looks better where education is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.