Calendly vs Segment

Calendly (Simple, beautiful scheduling.) and Segment both appear on the Smoower Developer Ecosystem Index.

Segment (rank #101) holds a meaningful lead over Calendly (rank #729) on the overall Smoower ecosystem score (55 vs 30). The gap of 25 points reflects composite signals across code, docs, community and reach.

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

Calendly carries 132 GitHub stars across 29 public repos, with 0 repositories active in the last 90 days and 0 external contributors on record. Segment shows 58,406 stars across 421 public repos, 53 active in the last 90 days and 12 external contributors. The star gap on its own does not decide the comparison, but Segment's footprint is roughly 442.5x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Calendly is the stronger read for anyone weighting reach. Segment looks better where momentum 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.