KubeMQ vs Upstash QStash
| KubeMQ | Upstash QStash | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | Yes | No |
| Paid from | — | $1/mo |
| Open source | No | No |
| Platforms | api, Linux, self-hosted, Web | api, Web |
| Deployment model | hybrid | cloud |
| Delivery guarantees | configurable | at_least_once |
| Dead-letter queues | Yes | Yes |
| Ordering guarantees | per_queue | per_queue |
| Supported protocols | Kafka, RabbitMQ AMQP 0-9-1, AMQP 1.0, MQTT, STOMP, AWS SQS/SNS, Google Cloud Pub/Sub, CloudEvents, gRPC, REST, WebSocket | HTTP |
| Free plan | — | Yes |
| Maximum message size | — | 10 MB |
Both are listed in Best Message Broker Software. On Samsung Mobile US Press, Upstash QStash scores higher on our published basis.