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Oracle Cloud vs Solace PubSub+

Oracle Cloud logo

Oracle Cloud

Cloud

Enterprise cloud computing services

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: Oracle Cloud the free trial gives US$300 of credit that expires when consumed or after 30 days, whichever comes first; 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: Oracle Cloud covers Autonomous Database, 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 Oracle Cloud and Solace PubSub+ actually diverge.

Attributes where Oracle Cloud and Solace PubSub+ differ
AttributeOracle CloudSolace PubSub+
Pricing modelusage-basedquote
PlatformsLinux, Windows, Api, CliLinux, Docker, Kubernetes, Cloud, Hardware appliance
CategoryCloudDatabases
Founded2019Unknown

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 Oracle Cloud

  • Autonomous Database
  • Compute Instances
  • MySQL Database Service
  • Object Storage
  • Block Volume
  • Load Balancers
  • Virtual Cloud Network
  • API Gateway

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.

Oracle Cloud

  • Running virtual machines, databases and storage on Oracle's cloud infrastructurenot Solace PubSub+
  • Hosting Oracle Database workloads on infrastructure from the same vendornot 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 Oracle Cloud
  • An exchange or trading platform with a latency budget that needs the hardware appliance rather than a software brokernot Oracle Cloud
  • An airline distributing operational events to ground systems, aircraft and partner APIs over different protocolsnot Oracle Cloud
  • A manufacturer bridging factory MQTT telemetry into an enterprise Kafka estate without writing translation servicesnot Oracle Cloud

Where each one falls short

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

Oracle Cloud

  • The free trial gives US$300 of credit that expires when consumed or after 30 days, whichever comes first
  • The US$300 cloud credit is available only in select countries
  • Only one Oracle Cloud Free Trial or Always Free account is permitted per person
  • Accounts left idle for 30 days or more are eligible for suspension or termination as abandoned
  • Always Free NoSQL Database is restricted to the Phoenix region
  • Free Tier availability is subject to capacity limits, and the published per-service capacity figures are estimates that assume the entire credit is spent on that one service

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

Oracle Cloud

Free
  • Always FreeFree
    • Oracle Autonomous Database
    • 2 compute instances
    • 100 GB storage
  • Pay-as-You-GoFree
    • Flexible pricing
    • No long-term commitment
    • Enterprise support

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 Oracle Cloud if

  • You need autonomous database.
  • You want to start without paying.
  • You work on Linux, Windows, Api, Cli.
  • You also want compute instances.
Oracle Cloud 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 Oracle Cloud or Solace PubSub+ better?
Neither clearly leads. Oracle Cloud 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, Oracle Cloud or Solace PubSub+?
Oracle Cloud starts at Free and Solace PubSub+ at Free.
Does Oracle Cloud or Solace PubSub+ run on more platforms?
Oracle Cloud runs on Linux, Windows, Api, Cli. Solace PubSub+ runs on Linux, Docker, Kubernetes, Cloud, Hardware appliance.
Can I use Oracle Cloud for free?
Both have a free tier, so you can try either at no cost before committing.
What is Oracle Cloud best used for?
Oracle Cloud is most often used for running virtual machines, databases and storage on oracle's cloud infrastructure, hosting oracle database workloads on infrastructure from the same vendor. Of those, running virtual machines, databases and storage on oracle's cloud infrastructure and hosting oracle database workloads on infrastructure from the same vendor are not what Solace PubSub+ is typically brought in for.
What can Oracle Cloud do that Solace PubSub+ cannot?
Oracle Cloud covers Autonomous Database, Compute Instances, MySQL Database Service, Object Storage. Solace PubSub+ covers Multi-protocol broker, Dynamic message routing, Hardware appliance, Event Portal.

Answered from the vendors’ own pages

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.

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.

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.

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