HiveMQ MQTT Broker vs Solace PubSub+ Event Broker
| HiveMQ MQTT Broker | Solace PubSub+ Event Broker | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | $299/mo | — |
| Open source | No | No |
| Platforms | api, Linux, self-hosted, Windows | Web |
| Free plan | Yes | Yes |
| Deployment model | hybrid | hybrid |
| Delivery guarantees | configurable | — |
| Dead-letter queues | Yes | — |
| Maximum message size | 256 MB | — |
| Supported protocols | MQTT 3.1, MQTT 3.1.1, MQTT 5, TCP, TLS, WebSocket | — |
Both are listed in Best Message Broker Software, Best Message Queue (MQ) Software. On Specifiction, HiveMQ MQTT Broker scores higher on our published basis.