vioscaleAI
Comparison

Apache Kafka vs Confluent Cloud

On the evidence we track, Confluent Cloud leads this comparison with a composite score of 93/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Apache Kafka full profile →Confluent Cloud full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
Apache Kafka57
★Confluent Cloud93
Score
vioscaleAI score
Apache Kafka57 / 100low · 49%
Confluent Cloud93 / 100medium · 73%
Pricing
Free tier
Apache Kafka✓
Confluent Cloud✓
Model
Apache Kafkaopen_source
Confluent Cloudfreemium
Price level
Apache Kafkafree
Confluent Cloudlow
Starting price
Apache Kafka–
Confluent Cloud$0.02
Transparent
Apache Kafka–
Confluent Cloud✓
Integrations
Count
Apache Kafka4
Confluent Cloud120
Security
Certifications
Disclosure policy
Apache Kafka–
Confluent Cloud✓
Fedramp
Apache Kafka–
Confluent Cloud✓
Gdpr
Apache Kafka–
Confluent Cloud✓
Hipaa
Apache Kafka–
Confluent Cloud✓
Iso27001
Apache Kafka–
Confluent Cloud✓
Pci
Apache Kafka–
Confluent Cloud✓
Scorecard
Apache Kafka6.1
Confluent Cloud–
Soc2
Apache Kafka–
Confluent Cloud✓
Trust center
Vulnerabilities
Reliability
Sla pct
Apache Kafka–
Confluent Cloud99.99
Status page
Apache Kafka–
Confluent Cloud✓
Adoption
Dependent repos
Apache Kafka1
Confluent Cloud–
Github stars
Apache Kafka33,937
Confluent Cloud–
Package downloads weekly
Apache Kafka3,890,048
Confluent Cloud–
Activity
Commits last 30d
Apache Kafka100
Confluent Cloud–
License
Spdx
Apache KafkaApache-2.0
Confluent Cloud–
Language
Primary
Apache KafkaJava
Confluent Cloud–
Market
Availability
Content
Faq
Apache Kafka6 items
Confluent Cloud6 items

Capabilities

Feature-by-feature on the axes that matter for message queues. “-” means undocumented, not absent.

Core
Messaging paradigm
Apache KafkaPub/sub
Confluent CloudPub/sub
Correctness
Delivery guarantee
Apache KafkaExactly-once
Confluent CloudExactly-once
Ordering guarantee
Apache KafkaPer-partition
Confluent CloudPer-partition
Durability
Durable replayable log
Apache Kafka✓
Confluent Cloud✓
Message replay / rewind
Apache Kafka✓
Confluent Cloud✓
Interop
Wire protocol
Apache KafkaBinary over TCP (SSL/SASL for authentication/encryption)
Confluent CloudKafka protocol, REST API
Kafka-protocol compatible
Apache Kafka✓
Confluent Cloud✓
Scale
Partitioned horizontal scaling
Apache Kafka✓
Confluent Cloud✓
Geo / cross-region replication
Apache Kafka✓
Confluent Cloud✓
Consumption
Consumer groups / competing consumers
Apache Kafka✓
Confluent Cloud✓
Dead-letter queue
Apache Kafka-
Confluent Cloud-
Deployment
Managed cloud offering exists
Apache Kafka✗
Confluent Cloud✓
Hosting
Apache KafkaSelf-hosted only
Confluent CloudCloud only
Processing
Built-in stream processing
Apache Kafka✓
Confluent Cloud✓

What each one is

The product in its own terms, so the numbers below have context.

Apache Kafka

An open-source system for capturing, storing, and processing continuous data flows at scale. Used to build real-time analytics, data connectors, and mission-critical applications.

Independently observed

Confluent Cloud

Leader

Confluent Cloud is a managed Kafka service that automates infrastructure management and scaling across multiple cloud providers. It combines Kafka for streaming data with integrated Apache Flink for stream processing, providing enterprise-grade security, hundreds of pre-built connectors, and usage-based pricing with no upfront capacity provisioning required.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Apache Kafka

Open source
as of verify ↗

Confluent Cloud

Leader
from $0.02/GBUsage-basedFree tier120-day trial

Free tier available. Pay-as-you-go usage pricing ($0.14-2.25/eCKU-hour depending on tier, $0.035-0.050/GB networking, $0.03-0.08/GB-month storage). Annual commitments available with tiered discounts. $400 free credits for new users over 4 months.

  • FreeFree
    • Autoscaling
    • Kafka ACLs
    • Data encryption
    • Audit logs
    • RBAC
    • +1 more
  • Standard~$385/month typical. $0.75/eCKU-hour, $0.035-0.050/GB networking, $0.03/GB/month storage
    • Autoscaling at scale
    • Advanced governance
    • Audit logs
    • SAML/SSO
    • RBAC
    • +1 more
  • Enterprise~$895/month typical. $1.75-2.25/eCKU-hour (min 2), $0.020-0.050/GB networking, tiered storage
    • GBps+ autoscaling
    • Private networking
    • Client-side field-level encryption
    • Advanced monitoring
    • All security features
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Apache Kafka✗
Confluent Cloud✓
Linux
Apache Kafka✓
Confluent Cloud✗
CLI
Apache Kafka✓
Confluent Cloud✓
Deployment
Cloud / SaaS
Apache Kafka✗
Confluent Cloud✓
Self-hosted
Apache Kafka✓
Confluent Cloud✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (2)
  • Elasticsearch
  • AWS S3

Apache Kafka

4 total - 2 not shared
  • Postgres
  • JMS
Independently observed

Confluent Cloud

Leader
16 total - 14 not shared
  • Salesforce
  • Google Ads
  • Google Analytics
  • Hotjar
  • Quickbooks
  • MySQL
  • Apache Flink
  • Schema Registry
  • Apache Iceberg
  • Delta Lake
  • Slack
  • Amazon S3
  • Google Cloud Storage
  • Azure Blob Storage
Independently observed
Still deciding?

Apache Kafka or Confluent Cloud: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.