Duolingo vs Paddle
Developer ecosystem comparison across GitHub activity, SDKs, documentation, community, reach and momentum.
Duolingo and Paddle both appear on the Smoower Developer Ecosystem Index.
Duolingo (rank #338) holds a narrow lead over Paddle (rank #372) on the overall Smoower ecosystem score (43 vs 42). The gap of 1 points reflects composite signals across code, docs, community and reach.
On code quality (the state of repositories, tests, releases and polish), Paddle is ahead of Duolingo. On education (docs, guides and learning material for developers), Paddle is ahead of Duolingo. On community (issue response, PR reviews and discussion health), Paddle is slightly ahead of Duolingo. On reach (how visible the ecosystem is beyond its own repos), Duolingo is clearly ahead of Paddle. On momentum (release cadence and how fast the ecosystem moves), Duolingo is slightly ahead of Paddle.
Duolingo carries 1,721 GitHub stars across 12 public repos, with 8 repositories active in the last 90 days and 11 external contributors on record. Paddle shows 997 stars across 54 public repos, 22 active in the last 90 days and 6 external contributors.
Duolingo is the stronger read for anyone weighting reach. Paddle looks better where code quality 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.
Side-by-side metrics
| Metric | Duolingo | Paddle |
|---|---|---|
| Ranking | ||
| Overall rank | #338 | #372 |
| Pillars | ||
| Overall | 43 | 42 |
| Code | 44 | 61 |
| Education | 47 | 57 |
| Community | 37 | 41 |
| Reach | 49 | 23 |
| Momentum | 38 | 34 |
| Builder experience | 0 | 0 |
| Signals | ||
| Stars | 1,721 | 997 |
| Forks | 267 | 650 |
| Public repos | 12 | 54 |
| Active repos (90d) | 8 | 22 |
| External contributors | 11 | 6 |
| Avg polish | 51 | 63 |
| Avg AI-readiness | 30 | 40 |