Close vs MailerSend

Close (The inside sales CRM of choice for SMBs) and MailerSend (Email service that delivers) both appear on the Smoower Developer Ecosystem Index.

Close (rank #298) holds a narrow lead over MailerSend (rank #401) on the overall Smoower ecosystem score (45 vs 41). The gap of 4 points reflects composite signals across code, docs, community and reach.

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

Close carries 3,871 GitHub stars across 190 public repos, with 25 repositories active in the last 90 days and 10 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 Close's footprint is roughly 7.8x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Close is the stronger read for anyone weighting momentum. MailerSend looks better where reach 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.