KAYAK vs Revolut

KAYAK and Revolut (Revolut Open Source) both appear on the Smoower Developer Ecosystem Index.

KAYAK (rank #485) holds a narrow lead over Revolut (rank #693) on the overall Smoower ecosystem score (38 vs 31). The gap of 7 points reflects composite signals across code, docs, community and reach.

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

KAYAK carries 3,186 GitHub stars across 72 public repos, with 4 repositories active in the last 90 days and 1 external contributors on record. Revolut shows 260 stars across 35 public repos, 5 active in the last 90 days and 1 external contributors. The star gap on its own does not decide the comparison, but KAYAK's footprint is roughly 12.3x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

KAYAK is the stronger read for anyone weighting code quality. Revolut makes more sense for teams already using its adjacent tools. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.