Castor EDC vs. Prelude
Side-by-side across both vendors’ full G2 portfolios — reviews, ratings and category coverage aggregated to the company, not a single product.
| Metric | Castor EDC | Prelude |
|---|---|---|
| Avg. rating | 4.6 | 4.9 |
| Total reviews | 126 | 21 |
| Review growth (QoQ) | — | — |
| Products on G2 | 1 | 1 |
| Categories covered | 1 | 1 |
| Best category rank | #9 in Electronic Data Capture (EDC) | #12 in Electronic Data Capture (EDC) |
| Small Business | 48.4% | 60.0% |
| Mid-Market | 15.9% | 35.0% |
| Enterprise | 35.7% | 5.0% |