Heap vs MailerSend

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

MailerSend (rank #401) holds a narrow lead over Heap (rank #569) on the overall Smoower ecosystem score (41 vs 35). The gap of 6 points reflects composite signals across code, docs, community and reach.

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

Heap carries 215 GitHub stars across 65 public repos, with 6 repositories active in the last 90 days and 1 external contributors on record. MailerSend shows 499 stars across 22 public repos, 12 active in the last 90 days and 7 external contributors.

Heap is the stronger read for anyone weighting reach. MailerSend looks better where community 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.