Calendly vs draw.io

Calendly (Simple, beautiful scheduling.) and draw.io (draw.io specialises in browser-based diagramming components and applications.) both appear on the Smoower Developer Ecosystem Index.

draw.io (rank #337) holds a modest lead over Calendly (rank #729) on the overall Smoower ecosystem score (43 vs 30). The gap of 13 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), draw.io is slightly ahead of Calendly. On education (docs, guides and learning material for developers), draw.io is ahead of Calendly. On community (issue response, PR reviews and discussion health), draw.io is clearly ahead of Calendly. On reach (how visible the ecosystem is beyond its own repos), Calendly is slightly ahead of draw.io. On momentum (release cadence and how fast the ecosystem moves), draw.io 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. draw.io shows 87,304 stars across 32 public repos, 12 active in the last 90 days and 12 external contributors. The star gap on its own does not decide the comparison, but draw.io's footprint is roughly 661.4x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Calendly is the stronger read for anyone weighting reach. draw.io 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.