EMQX vs Solace PubSub+ Event Broker
EMQX
emqx.com
Solace PubSub+ Event Broker
solace.comSide by side
| Figure | EMQX | Solace PubSub+ Event Broker |
|---|---|---|
| Price from | $234/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 5 | 5 |
| Spec score · Message Broker Software | 9.1 (#2) | 8.2 (#13) |
| Spec score · Message Queue (MQ) Software | 9.1 (#2) | 8.2 (#11) |
| Deployment | EMQX can run in Docker, through a Kubernetes Operator, or from packages on Red Hat, CentOS, Rocky Linux, Amazon Linux, Ubuntu, Debian, macOS and Linux. | The broker is available as a cloud service, software, or appliance and can run in clouds, data centers, and remote locations. |
| Founded | 2017 | 2001 |
| Headquarters | Menlo Park, California, United States | Ottawa, Ontario, Canada |
| Integrations | EMQX Enterprise provides more than 40 out-of-box integrations including Kafka, AWS RDS, MongoDB, Oracle, SAP and time-series databases. | Solace offers supported micro-integrations for applications, cloud services, and integration tools. |
| Protocols | The platform supports MQTT 3.1.1 and 5.0, MQTT over WebSocket and QUIC, plus NATS, CoAP and LwM2M gateways. | Connectivity includes AMQP, JMS, MQTT, REST and WebSocket protocols. |
| Purpose | EMQX Enterprise is an MQTT messaging platform for connecting, moving, and processing IoT business data in real time. | The Event Broker streams information among applications, AI agents, and devices across cloud, on-premises, and edge environments. |
| Rating on Capterra | 4.5 out of 5 from 8 reviews | 0.0 out of 5 from 0 reviews |
| Rating on G2 | 4.6 out of 5 from 23 reviews | 4.4 out of 5 from 7 reviews |
| Rating on Gartner Peer Insights | 4.5 out of 5 from 6 reviews | 4.6 out of 5 from 336 ratings |
| Security | Security features include TLS/mTLS, X.509 certificate authentication, access controls, and audit logs. | Solace Cloud states that its infrastructure for customer event broker services, Solace Home Cloud, and the Cloud Console complies with GDPR, SOC 2 Type 2, and ISO 27001. |
| Support | The pricing page lists 8/5 support for Serverless and 24/7 premium support for Dedicated Flex. | The pricing page lists standard support with 24x7x365 product defect and outage resolution, while Advanced and Advanced+ list response times of 30 and 15 minutes respectively. |
| What it does | EMQX is a unified MQTT platform for connecting, processing and streaming real-time IoT data to cloud, AI and analytics systems. | Solace Event Broker moves real-time information among applications, AI agents and devices across cloud, on-premises and edge environments. |
Plans
EMQX
- ServerlessFree
- Dedicated Flex$234 a month
- BYOCPriced on request
- ServerlessFree
- EnterprisePrice not published
Solace PubSub+ Event Broker
- Event Broker Software StandardFree
- Solace Cloud Event Broker TrialFree
- Solace Cloud trialFree
- Solace Event Broker Software Free VersionFree
- Event Broker Software EnterprisePriced on request
In their own words
EMQX
EMQX is an MQTT messaging platform for connecting, moving, and processing IoT business data in real time. EMQX Enterprise combines publish/subscribe messaging with durable message queuing, while a SQL-based Rule Engine and visual Flow Designer support filtering, transforming, enriching, and routing data. The platform supports MQTT and protocols or gateways including QUIC, CoAP, STOMP, and LwM2M; its listed protocols also include MQTT-SN, OCPP, GB/T 32960, JT/T 808, and NATS. EMQX says a cluster can handle up to 100 million concurrent MQTT connections and lists more than 50 native integrations. Security features include TLS/mTLS, X.509 authentication, access controls, and audit logs. Deployment options include Docker, a Kubernetes Operator, and installation packages, with macOS and Linux packages listed. Plans include free Serverless and Dedicated Flex starting at $234 per month, with a 14-day trial listed for Dedicated Flex. Serverless has limits including 1,000 sessions, 1,000 TPS, and a 1 MB message size.
Solace PubSub+ Event Broker
Solace PubSub+ Event Broker streams information among applications, AI agents, and devices across cloud, on-premises, and edge environments. Multiple brokers can form an event mesh to route data across clouds, data centers, and geographies. It is offered as a cloud service, software, or appliance, for deployment in clouds, data centers, and remote locations. Messaging features include exchange patterns, qualities of service, caching, partitioned queues, and replay. Supported protocols include AMQP, Kafka, MQTT, REST, and WebSocket, alongside APIs for programming languages. Solace offers supported micro-integrations for applications, cloud services, and integration tools. Monitoring includes custom dashboards and alerts, and distributed tracing is broker-native and based on OpenTelemetry. Cloud services enable secure protocol ports by default and disable plain-text ports by default. Free options include a 30-day cloud trial and a free enterprise-grade software version. Solace was founded in 2001 and is headquartered in Ottawa, Ontario, Canada.