Chargebee vs Zulip

Chargebee (Billing Platform for Subscription Businesses.) and Zulip (Organized team chat) both appear on the Smoower Developer Ecosystem Index.

Chargebee (rank #401) holds a narrow lead over Zulip (rank #536) on the overall Smoower ecosystem score (41 vs 36). The gap of 5 points reflects composite signals across code, docs, community and reach.

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

Chargebee carries 651 GitHub stars across 45 public repos, with 20 repositories active in the last 90 days and 1 external contributors on record. Zulip shows 32,299 stars across 67 public repos, 9 active in the last 90 days and 76 external contributors. The star gap on its own does not decide the comparison, but Zulip's footprint is roughly 49.6x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Chargebee is the stronger read for anyone weighting momentum. Zulip 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.