Cortex vs DolphinDB
| Cortex | DolphinDB | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | Yes |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | api, extension, Linux, self-hosted, Web, Windows |
| Deployment | self_hosted | both |
| SQL support | No | Yes |
| Retention policies | Yes | Yes |
| Horizontal scaling | Yes | Yes |
| Query languages | PromQL | DolphinDB SQL; ANSI SQL/SQL-92; DolphinDB scripting language |
| Ingestion methods | Prometheus remote_write; OpenTelemetry Protocol (OTLP) | Text, binary, JSON, HDF5, Parquet, Arrow, ODBC, APIs, Kafka, MQTT, ZeroMQ, MySQL, MongoDB, HBase, kdb+ |
| Free plan | — | Yes |
Both are listed in Best Time-Series Databases. On Samsung Mobile US Press, DolphinDB scores higher on our published basis.