Hotjar vs MailerSend

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

Hotjar (rank #317) holds a narrow lead over MailerSend (rank #401) on the overall Smoower ecosystem score (44 vs 41). 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), Hotjar is slightly ahead of MailerSend. On education (docs, guides and learning material for developers), Hotjar is slightly ahead of MailerSend. On community (issue response, PR reviews and discussion health), MailerSend is slightly ahead of Hotjar. On reach (how visible the ecosystem is beyond its own repos), Hotjar is clearly ahead of MailerSend. On momentum (release cadence and how fast the ecosystem moves), MailerSend is slightly ahead of Hotjar.

Hotjar carries 52 GitHub stars across 2 public repos, with 1 repositories active in the last 90 days and 2 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 MailerSend's footprint is roughly 9.6x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Hotjar 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.