vioscale
Comparison

Confluent Cloud vs Google Cloud Pub/Sub

On the evidence we track, Confluent Cloud leads this comparison with a composite score of 91/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Confluent Cloud full profile →Google Cloud Pub/Sub full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
★Confluent Cloud91
Google Cloud Pub/Sub53
Score
Vioscale score
Confluent Cloud91 / 100medium · 72%updating
Google Cloud Pub/Sub53 / 100low · 49%updating
Pricing
Free tier
Confluent Cloud✓
Google Cloud Pub/Sub✓
Model
Confluent Cloudfreemium
Google Cloud Pub/Subfreemium
Price level
Confluent Cloudlow
Google Cloud Pub/Sublow
Transparent
Confluent Cloud✓
Google Cloud Pub/Sub✗
Integrations
Count
Confluent Cloud130
Google Cloud Pub/Sub3
Security
Disclosure policy
Confluent Cloud✓
Google Cloud Pub/Sub–
Fedramp
Confluent Cloud✓
Google Cloud Pub/Sub–
Gdpr
Confluent Cloud✓
Google Cloud Pub/Sub–
Hipaa
Confluent Cloud✓
Google Cloud Pub/Sub–
Iso27001
Confluent Cloud✓
Google Cloud Pub/Sub–
Pci
Confluent Cloud✓
Google Cloud Pub/Sub–
Soc2
Confluent Cloud✓
Google Cloud Pub/Sub–
Reliability
Sla pct
Confluent Cloud99.99
Google Cloud Pub/Sub–
Status page
Confluent Cloud✓
Google Cloud Pub/Sub✓
Market
Availability

Capabilities

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

Core
Messaging paradigm
Confluent CloudPub/sub
Google Cloud Pub/SubPub/sub
Correctness
Delivery guarantee
Confluent Cloud-
Google Cloud Pub/SubAt-least-once
Ordering guarantee
Confluent CloudPer-partition
Google Cloud Pub/SubPer-key
Durability
Durable replayable log
Confluent Cloud✓
Google Cloud Pub/Sub✓
Message replay / rewind
Confluent Cloud✓
Google Cloud Pub/Sub✓
Interop
Wire protocol
Confluent CloudKafka protocol, REST API
Google Cloud Pub/Sub-
Kafka-protocol compatible
Confluent Cloud✓
Google Cloud Pub/Sub-
Scale
Partitioned horizontal scaling
Confluent Cloud✓
Google Cloud Pub/Sub✓
Geo / cross-region replication
Confluent Cloud✓
Google Cloud Pub/Sub✓
Consumption
Consumer groups / competing consumers
Confluent Cloud✓
Google Cloud Pub/Sub✓
Dead-letter queue
Confluent Cloud-
Google Cloud Pub/Sub-
Deployment
Managed cloud offering exists
Confluent Cloud✓
Google Cloud Pub/Sub✓
Hosting
Confluent CloudCloud only
Google Cloud Pub/SubCloud only
Processing
Built-in stream processing
Confluent Cloud✓
Google Cloud Pub/Sub✓

What each one is

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

Confluent Cloud

Leader

Confluent Cloud is a fully managed Apache Kafka service enabling organizations to stream high-volume, low-latency events between systems in real-time. It eliminates operational overhead through automatic scaling, multi-region replication, and costs significantly less than self-managed Kafka deployments.

Independently observed

Google Cloud Pub/Sub

A cloud-based publish/subscribe messaging system that enables applications to ingest and stream event data at scale with guaranteed delivery, automatic scaling, and built-in replay capabilities. Integrates with data warehouses and stream processing pipelines for real-time analytics.

Independently observed

Pricing

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

Confluent Cloud

Leader
Usage-basedFree tier30-day trial

Usage-based pay-as-you-go pricing with free tier option

  • BasicFree
  • StandardPay-as-you-go
    • infinite storage
    • audit logs
    • 20%+ throughput savings
  • EnterprisePay-as-you-go
    • private networking
    • autoscaling to GBps+ throughput
    • 32%+ throughput savings
as of verify ↗

Google Cloud Pub/Sub

from $0.27/moUsage-basedFree tier

Usage-based: $40/TiB throughput, $0.27/GiB-month storage. Free tier: 10 GiB/month throughput.

  • Standard Pub/Sub$40/TiB throughput + $0.27/GiB-month storage (first 10 GiB throughput free)
    • At-least-once message delivery
    • Per-key message ordering
    • Pull and push delivery modes
    • Cross-zone replication
    • Automatic scaling and provisioning
    • +1 more
as of verify ↗

Platform & deployment

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

Platforms
Web
Confluent Cloud✓
Google Cloud Pub/Sub✓
CLI
Confluent Cloud✓
Google Cloud Pub/Sub✓
Deployment
Cloud / SaaS
Confluent Cloud✓
Google Cloud Pub/Sub✓
Hybrid
Confluent Cloud✓
Google Cloud Pub/Sub✗

Integrations

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

Confluent Cloud

Leader
10 total
  • Salesforce
  • Google Ads
  • Google Analytics
  • Hotjar
  • Quickbooks
  • MySQL
  • Apache Flink
  • Schema Registry
  • Apache Iceberg
  • Delta Lake
Independently observed

Google Cloud Pub/Sub

3 total
  • BigQuery
  • Cloud Storage
  • Dataflow
Independently observed

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