Amazon SNS vs NATS
| Amazon SNS | NATS | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | No | No |
| Paid from | $0.06/mo | — |
| Open source | No | No |
| Platforms | api, Web | — |
| Free plan | Yes | — |
| Deployment model | cloud | hybrid |
| Delivery guarantees | configurable | configurable |
| Dead-letter queues | Yes | — |
| Ordering guarantees | per_partition | — |
| Maximum message size | 1 MB | — |
| Supported protocols | http, https, email, email-json, sms, sqs, application, lambda, firehose | NATS, MQTT, WebSocket |
Both are listed in Best Message Broker Software. On Specifiction, Amazon SNS scores higher on our published basis.