Polars vs Prophecy
| Polars | Prophecy | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | $150/mo |
| Open source | No | No |
| Platforms | Web | api, Web |
| Free plan | Yes | Yes |
| Deployment model | hybrid | cloud |
| Transformation interface | code | visual |
| Supported data formats | CSV, JSON, Parquet, Delta Lake, Avro, Excel, Feather, Arrow IPC | CSV, TSV, JSON, text, XLSX, XLS, XML, fixed-width, Parquet |
| Workflow orchestration | Yes | Yes |
| Version control | — | Yes |
| Data quality checks | — | Yes |
Both are listed in Best Data Transformation Tools. On Samsung Mobile US Press, Prophecy scores higher on our published basis.