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Comparison

Confluent vs Apache Kafka

Confluent and Apache Kafka both land on Depends.

Confluent

confluent.io

Depends
Confidence: Medium

Buy only if you run serious real-time data pipelines and have platform engineers to operate them.

Read the full report

Apache Kafka

kafka.apache.org

Depends
Confidence: Medium

Buy it if you move high-volume event data at scale and have platform engineers to run it . 80%+ of the Fortune 100 do exactly that.

Read the full report

Confluent versus Apache Kafka
CompareConfluentApache Kafka
VerdictDependsDepends
Best forReal-time data streaming at enterprise scaleHigh-volume real-time data pipelines
Who it's not forSmall teams needing a simple message queueSmall teams needing a simple message queue
PrivacyMature enterprise security program: publishes CVE advisories, maintains a public trust center, holds compliance certifications.⁶Actively maintained Apache project with a public CVE list; several notable vulnerabilities in recent years require prompt patching and hardened configuration.
Support qualityNo direct support-quality evidence foundNo direct support evidence in sources
Public sentimentReviewers praise Confluent's streaming power and G2 standing but repeatedly flag opaque pricing, hidden costs, and non-trivial setup.¹Users value Kafka's throughput and ecosystem but consistently cite steep operational complexity and surprising cloud costs.14
Biggest gotchaCloud bills hide costs: egress, connectors, and cluster sizing inflate invoices fast.³Software is free; clusters, staffing, and 24/7 operations are not . budget for platform engineers

Pick Confluent when

  • Real-time data streaming at enterprise scale
  • Event-driven microservices architectures
  • Teams standardizing on Kafka and Flink
  • Organizations needing data stream governance

When Confluent is not a fit

  • Small teams needing a simple message queue
  • Companies without dedicated data-platform engineers
  • Budget-sensitive startups fearing unpredictable usage bills
  • Simple batch ETL jobs . cheaper tools exist

Pick Apache Kafka when

  • High-volume real-time data pipelines
  • Microservices event streaming at scale
  • Teams with dedicated platform engineers
  • Companies integrating many data systems

When Apache Kafka is not a fit

  • Small teams needing a simple message queue
  • Anyone without dedicated ops/platform engineers
  • Low-throughput apps where a database or basic queue suffices
  • Teams wanting zero infrastructure management but unwilling to pay for managed

Sources

  1. Confluent Reviews, Ratings & Features . G2g2.com
    review
  2. Confluent Pricing . G2g2.com
    review
  3. Confluent Cloud Pricing Breakdown: Hidden Costs . AutoMQautomq.com
    news
  4. Confluent Pricing . officialconfluent.io
    official
  5. Manage Billing in Confluent Cloud . docsdocs.confluent.io
    official
  6. CONFSA-2025-01: CVE-2024-56128 advisorysupport.confluent.io
    security
  7. CVE-2021-38153: Timing attacks advisorysupport.confluent.io
    security
  8. Confluent Trust and Complianceconfluent.io
    official
  9. Confluent Reviews . Gartner Peer Insightsgartner.com
    review
  10. Companies that use Confluent . TheirStacktheirstack.com
    news
  11. Confluent Raises $125M Series Dconfluent.io
    news
  12. 12 Best Confluent Alternatives . Streamkapstreamkap.com
    news
  13. Apache Kafka . official sitekafka.apache.org
    official
  14. Apache Kafka Reviews . G2g2.com
    review
  15. Apache Kafka Reviews . Capterracapterra.com
    review
  16. Apache Kafka Reviews . TrustRadiustrustradius.com
    review