Heap vs Mailchimp

Heap (Product Insights) and Mailchimp (Mailchimp is an all-in-one marketing platform that helps you manage and talk to your clients, customers, and other interested parties.) both appear on the Smoower Developer Ecosystem Index.

Mailchimp (rank #317) holds a modest lead over Heap (rank #569) on the overall Smoower ecosystem score (44 vs 35). The gap of 9 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Mailchimp is ahead of Heap. On education (docs, guides and learning material for developers), Heap is clearly ahead of Mailchimp. On community (issue response, PR reviews and discussion health), Mailchimp is clearly ahead of Heap. On reach (how visible the ecosystem is beyond its own repos), Mailchimp is ahead of Heap. On momentum (release cadence and how fast the ecosystem moves), Mailchimp is slightly 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. Mailchimp shows 8,980 stars across 28 public repos, 6 active in the last 90 days and 6 external contributors. The star gap on its own does not decide the comparison, but Mailchimp's footprint is roughly 41.8x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Heap is the stronger read for anyone weighting education. Mailchimp 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.