Amazon Kinesis Data Streams vs Apache Pulsar
| Amazon Kinesis Data Streams | Apache Pulsar | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | api, Web | api, Linux, macOS, self-hosted, Windows |
| Free plan | No | Yes |
| Deployment model | cloud | self-hosted |
| Maximum retention | 365 days | — |
| Stream processing | Yes | Yes |
| Schema registry | Yes | Yes |
| Delivery guarantee | at-least-once | both |
| Supported client languages | Go, Java, JavaScript, .NET, PHP, Python, Ruby, C++, Kotlin, Rust, SAP ABAP, Swift | Java, Go, Python, C++, C#/.NET, Node.js, WebSocket |
Both are listed in Best Event Streaming Platforms. On The Geeks Club, Apache Pulsar scores higher on our published basis.