Apache Spark vs Kafka Streams
| Apache Spark | Kafka Streams | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | Free |
| Open source | No | No |
| Platforms | api, Linux, macOS, self-hosted, Windows | Linux, macOS, self-hosted, Windows |
| Free plan | Yes | Yes |
| Deployment model | — | self-hosted |
| SQL processing | — | No |
| Stateful processing | — | Yes |
| Event-time windows | — | Yes |
| Supported languages | — | Java, Scala |
Both are listed in Best Stream Processing Software. On Samsung Mobile US Press, Kafka Streams scores higher on our published basis.