Google Cloud Pub/Sub vs VerneMQ
| Google Cloud Pub/Sub | VerneMQ | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | $40/mo | — |
| Open source | No | No |
| Platforms | api, Web | Linux |
| Free plan | Yes | No |
| Deployment model | cloud | self_hosted |
| Delivery guarantees | configurable | configurable |
| Dead-letter queues | Yes | — |
| Maximum message size | 10 MB | — |
| Supported protocols | REST, gRPC | MQTT 3.1, MQTT 3.1.1, MQTT 5.0, MQTT over WebSocket, HTTP, PROXY v2 |
| Ordering guarantees | — | per_queue |
Both are listed in Best Message Broker Software, Best Message Queue (MQ) Software. On Specifiction, Google Cloud Pub/Sub scores higher on our published basis.