Amazon SQS vs Solace PubSub+ Event Broker
Amazon SQS
aws.amazon.com
Solace PubSub+ Event Broker
solace.comSide by side
| Figure | Amazon SQS | Solace PubSub+ Event Broker |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 5 |
| Spec score · Message Broker Software | 8.7 (#5) | 8.2 (#13) |
| Spec score · Message Queue (MQ) Software | 8.7 (#5) | 8.2 (#11) |
| Founded | 2006 | 2001 |
| Integrations | AWS lists integrations with Redshift, DynamoDB, RDS, EC2, ECS, Lambda, and S3, and describes fanout with SNS. | Solace offers supported micro-integrations for applications, cloud services, and integration tools. |
| Intended users | AWS describes SQS use for organizations building microservices, distributed systems, and serverless applications, including startups, enterprises, nonprofits, and governments. | The product page describes the broker for enterprises with demanding messaging and streaming needs and for connecting applications, customers, partners, and devices. |
| Licence | Amazon SQS is proprietary software rather than an open-source product. | The Event Broker is proprietary Solace software rather than open source; cloud terms grant limited, non-transferable use rights. |
| Purpose | Amazon SQS is a fully managed message queuing service for microservices, distributed systems, and serverless applications. | The Event Broker streams information among applications, AI agents, and devices across cloud, on-premises, and edge environments. |
| Rating on G2 | 4.3 out of 5 from 143 reviews. | 4.4 out of 5 from 7 reviews |
| Rating on Gartner Peer Insights | 4.6 out of 5 from 5,320 ratings. | 4.6 out of 5 from 336 ratings |
| Security | Server-side encryption uses AWS KMS keys to encrypt messages when SQS receives them and decrypt them for authorized consumers. | 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. |
| Self-hosting | SQS is delivered as an AWS managed service; the product pages describe console, API and SDK access rather than a self-hosted edition. | Self-managed software can run across public or private cloud, on-premises, containers and virtual machines. |
| What it does | Amazon SQS is a fully managed queue service for moving messages between distributed application components, microservices and serverless workloads. | Solace Event Broker moves real-time information among applications, AI agents and devices across cloud, on-premises and edge environments. |
Plans
Amazon SQS
- Free TierFree
- Standard queuesPriced on request
- FIFO queuesPriced on request
- Amazon SQS Free TierFree
- Pay-as-you-goPrice 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
Amazon SQS
Amazon SQS is a cloud message queuing service for microservices, distributed systems, and serverless applications. It lets separate software components send, store, and receive messages, supporting decoupled and event-driven designs. Standard queues provide at-least-once delivery with best-effort ordering, while FIFO queues preserve order without introducing duplicates. Standard queues support nearly unlimited transactions per second for each API action; FIFO high-throughput mode supports up to 70,000 messages per second without batching. Messages can contain up to 256 KB, or larger payloads can use the Java Extended Client Library with Amazon S3. SQS accepts batches of up to 10 messages and retains messages for up to 14 days. Dead Letter Queues handle messages exceeding a configured receive count and must match the source queue type. Integrations include Redshift, DynamoDB, RDS, EC2, ECS, Lambda, S3, and SNS fanout. Server-side encryption uses AWS KMS keys. The Free Tier is free for 1 million requests; separate S3, KMS, and data-transfer charges may apply.
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.