Apache Pulsar vs. Esper (open source)
| Product | Rating | Most Used By | Product Summary | Starting Price |
|---|---|---|---|---|
 Apache Pulsar | Score8 out of 10 | N/A | Apache Pulsar is a cloud-native, distributed messaging and streaming platform originally created at Yahoo! and now an Apache Software Foundation project. It is free and open source, available under the Apache License, version 2.0. | N/A |
 Esper (open source) | N/A | N/A | Esper is an open source complex event processing (CEP) platform supported by EsperTech in New Jersey. | $44 per year per user |
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| Editions & Modules | No answers on this topic |
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| Entry-level Setup Fee | No setup fee | No setup fee | ||||||||||||||
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