Softwr

Cloud · head to head

Google Cloud Platform vs Solace PubSub+

Google Cloud Platform logo

Google Cloud Platform

Cloud

Trusted by millions of enterprises

From
Free
Rated
-
Full reviewWebsite
Solace PubSub+ logo

Solace PubSub+

Databases

Multi-protocol event broker sold as software, cloud service or a hardware appliance

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Google Cloud Platform the $300 Free Trial credit expires 90 days from signup, whichever comes first with spending it; Solace PubSub+ no pricing is published at any tier, so evaluation requires a sales engagement before you can even judge whether it is in budget, and broker tier sizing determines cost in ways buyers frequently get wrong.
  • They diverge on capability: Google Cloud Platform covers Compute Engine, Solace PubSub+ covers Multi-protocol broker.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Google Cloud Platform and Solace PubSub+ actually diverge.

Attributes where Google Cloud Platform and Solace PubSub+ differ
AttributeGoogle Cloud PlatformSolace PubSub+
Pricing modelusage-basedquote
PlatformsWeb, Api, CliLinux, Docker, Kubernetes, Cloud, Hardware appliance
CategoryCloudDatabases
Founded2008Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Google Cloud Platform

  • Compute Engine
  • App Engine
  • Cloud Run
  • Cloud Storage
  • Cloud SQL
  • BigQuery
  • Dataflow
  • Cloud Pub/Sub

Only in Solace PubSub+

  • Multi-protocol broker
  • Dynamic message routing
  • Hardware appliance
  • Event Portal
  • Guaranteed delivery
  • Mission Control
  • Topic hierarchies and wildcards
  • Kafka and MQ bridging

What people use each for

The jobs each tool is most often brought in to do.

Google Cloud Platform

  • Cloud infrastructure and computing servicesnot Solace PubSub+
  • Machine learning and data analyticsnot Solace PubSub+
  • Enterprise application hostingnot Solace PubSub+

Solace PubSub+

  • A bank building an event mesh across regions where a Java JMS application and an MQTT mobile client must share the same topic spacenot Google Cloud Platform
  • An exchange or trading platform with a latency budget that needs the hardware appliance rather than a software brokernot Google Cloud Platform
  • An airline distributing operational events to ground systems, aircraft and partner APIs over different protocolsnot Google Cloud Platform
  • A manufacturer bridging factory MQTT telemetry into an enterprise Kafka estate without writing translation servicesnot Google Cloud Platform

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Google Cloud Platform

  • The $300 Free Trial credit expires 90 days from signup, whichever comes first with spending it
  • Free Tier Compute Engine is limited to one non-preemptible e2-micro instance per month and only in the us-west1, us-central1 or us-east1 regions
  • Free Tier Compute Engine includes only 30 GB-months of standard persistent disk and 1 GB of outbound North America data transfer per month
  • Free Tier Cloud Storage covers 5 GB-months of regional storage in US regions only, 5,000 Class A and 50,000 Class B operations per month
  • Free Tier outbound data transfer allowances exclude destinations in China and Australia
  • Compute Engine resources are governed by allocation quotas that require a quota increase request to exceed

Solace PubSub+

  • No pricing is published at any tier, so evaluation requires a sales engagement before you can even judge whether it is in budget, and broker tier sizing determines cost in ways buyers frequently get wrong.
  • The free Standard edition has hard capacity and support limits, which makes it useful for development but means any real deployment triggers a commercial negotiation.
  • The proprietary SMF protocol gives the best performance and feature coverage, so teams that lean on it acquire real switching costs even though open protocols are supported.
  • Operating a self-managed high availability broker pair with disaster recovery is a specialist task, and Solace expertise is scarce in the hiring market compared with Kafka skills.
  • Event Portal and Mission Control are licensed as part of platform packages, so the governance tooling that makes an event mesh manageable is not simply included with the broker.

Pricing, plan by plan

Google Cloud Platform

Free
  • Free TierFree
    • Compute Engine 744 hours/month
    • Cloud Storage 5GB
    • Cloud SQL 250MB storage

Solace PubSub+

Free
  • Software Event Broker StandardFree
    • Free for production within capacity limits
    • Single node, capped connections and queues
    • No vendor support
  • Solace Cloud$undefined/year
    • Managed brokers in tiers from ENT-250 to ENT-100K
    • Foundation, Accelerate and Scale platform packages
    • Fixed subscription or annual consumption drawdown
  • Software Enterprise self-managed$undefined/year
    • Deploy in your own Kubernetes, VMs or data centre
    • High availability and disaster recovery
    • Support with SLA
  • Hardware appliance$undefined/year
    • Purpose-built appliance with FPGA message offload
    • Deterministic low latency
    • Sold with support contract

Which should you pick?

Choose Google Cloud Platform if

  • You need compute engine.
  • You want to start without paying.
  • You work on Web, Api, Cli.
  • You also want app engine.
Google Cloud Platform review

Choose Solace PubSub+ if

  • You need multi-protocol broker.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Cloud, Hardware appliance.
  • You also want dynamic message routing.
Solace PubSub+ review

Questions people ask

Is Google Cloud Platform or Solace PubSub+ better?
Neither clearly leads. Google Cloud Platform starts at Free and Solace PubSub+ at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Google Cloud Platform or Solace PubSub+?
Google Cloud Platform starts at Free and Solace PubSub+ at Free.
Does Google Cloud Platform or Solace PubSub+ run on more platforms?
Google Cloud Platform runs on Web, Api, Cli. Solace PubSub+ runs on Linux, Docker, Kubernetes, Cloud, Hardware appliance.
Can I use Google Cloud Platform for free?
Both have a free tier, so you can try either at no cost before committing.
What is Google Cloud Platform best used for?
Google Cloud Platform is most often used for cloud infrastructure and computing services, machine learning and data analytics, enterprise application hosting. Of those, cloud infrastructure and computing services and machine learning and data analytics are not what Solace PubSub+ is typically brought in for.
What can Google Cloud Platform do that Solace PubSub+ cannot?
Google Cloud Platform covers Compute Engine, App Engine, Cloud Run, Cloud Storage. Solace PubSub+ covers Multi-protocol broker, Dynamic message routing, Hardware appliance, Event Portal.

Answered from the vendors’ own pages

Google Cloud Platform: What is Google Cloud Platform's pricing model?

Google Cloud uses usage-based pay-as-you-go pricing with options for committed use discounts at 1-year or 3-year terms, which can reduce costs by 25-70%. Pricing varies by region, service, and usage volume.

Source
Solace PubSub+: Is there a free version of Solace?

Yes, the Standard edition of the software event broker is free for production within capacity limits, with no vendor support.

Google Cloud Platform: Does Google Cloud offer a free tier?

Yes, Google Cloud offers an always-free tier with generous free allowances for development, plus $300 in free credits for new customers during their first 90 days.

Source
Solace PubSub+: Does Solace publish prices?

No. Cloud, software and appliance are all quoted, based on broker tier from ENT-250 to ENT-100K and licensing model.

Google Cloud Platform: How do committed use discounts work?

Users can commit to 1-year or 3-year usage of specific services to receive discounts of 25-70% compared to on-demand pricing. These discounts apply to compute, storage, and other services.

Source
Solace PubSub+: Why buy an appliance in 2026?

Deterministic low latency with message processing offloaded to hardware, which matters in capital markets and little elsewhere.

Solace PubSub+: Can it replace Kafka?

Not for log retention and stream reprocessing. It is stronger at multi-protocol routing and guaranteed delivery, and the two are often bridged.

Share

Related pages

More on Google Cloud Platform

More on Solace PubSub+

Keep looking

Other head to heads