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Databases · head to head

Solace PubSub+ vs UiPath

Solace PubSub+ logo

Solace PubSub+

Databases

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

From
Free
Rated
-
Full reviewWebsite
UiPath logo

UiPath

Automation Integration

The leading platform for business process automation

From
$25/month
Rated
-
Full reviewWebsite

The short version

  • Only Solace PubSub+ has a free tier, so it costs nothing to try first.
  • Each has a real cost: 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.; UiPath the Basic plan from $25 per month caps the tenant at 5 Basic users, 5 Plus users, 1 Pro user and 2 unattended robots
  • They diverge on capability: Solace PubSub+ covers Multi-protocol broker, UiPath covers Desktop RPA.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Solace PubSub+ and UiPath actually diverge.

Attributes where Solace PubSub+ and UiPath differ
AttributeSolace PubSub+UiPath
Starting priceFree$25/month
Pricing modelquotesubscription
Free tierYesNo
PlatformsLinux, Docker, Kubernetes, Cloud, Hardware applianceDesktop, Web
CategoryDatabasesAutomation Integration
FoundedUnknown2005

Identical on both: 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 Solace PubSub+

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

Only in UiPath

  • Desktop RPA
  • Cloud RPA
  • Process mining
  • Task mining
  • AI capabilities
  • Monitoring
  • Analytics
  • 500+ connectors

What people use each for

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

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 UiPath
  • An exchange or trading platform with a latency budget that needs the hardware appliance rather than a software brokernot UiPath
  • An airline distributing operational events to ground systems, aircraft and partner APIs over different protocolsnot UiPath
  • A manufacturer bridging factory MQTT telemetry into an enterprise Kafka estate without writing translation servicesnot UiPath

UiPath

  • Robotic process automation and business automationnot Solace PubSub+
  • Enterprise-wide deployment and process optimizationnot Solace PubSub+
  • UI automation and intelligent document processingnot Solace PubSub+
  • Large-scale automation programs with custom requirementsnot Solace PubSub+

Where each one falls short

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

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.

UiPath

  • The Basic plan from $25 per month caps the tenant at 5 Basic users, 5 Plus users, 1 Pro user and 2 unattended robots
  • Basic tenants are hosted only in the European region
  • Only the Basic tier carries a published price; Standard and Enterprise require contacting sales
  • Self healing automation, process simulation, Elastic Robot Orchestration, bring your own encryption keys and dedicated deployments are Enterprise only
  • Agent capability is limited on Basic and requires Standard or Enterprise
  • Extra unattended robots are purchased separately on top of the plan

Pricing, plan by plan

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

UiPath

$25/month
  • Automation Cloud Basic$25/month
    • Build and run basic personal automations
    • Limited scale
    • 99.9% service uptime
  • Automation Cloud Standard$null/month
    • Enterprise automation capabilities
    • Document classification and extraction at scale
    • No limits to scale
  • Automation Cloud Enterprise$null/month
    • Self-healing UI automation
    • Process optimization and simulation
    • Infrastructure automation
  • Test Cloud Standard$null/month
    • Contact Sales for pricing

Which should you pick?

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

Choose UiPath if

  • You need desktop rpa.
  • You work on Desktop, Web.
  • You also want cloud rpa.
UiPath review

Questions people ask

Is Solace PubSub+ or UiPath better?
Neither clearly leads. Solace PubSub+ starts at Free and UiPath at $25/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Solace PubSub+ or UiPath?
Solace PubSub+ has a free tier; the other does not. Paid plans start at Free for Solace PubSub+ and $25/month for UiPath.
Does Solace PubSub+ or UiPath run on more platforms?
Solace PubSub+ runs on Linux, Docker, Kubernetes, Cloud, Hardware appliance. UiPath runs on Desktop, Web.
Can I use Solace PubSub+ for free?
Yes. Solace PubSub+ has a free tier, so you can try it without paying. UiPath starts at $25/month.
What is Solace PubSub+ best used for?
Solace PubSub+ is most often used for a bank building an event mesh across regions where a java jms application and an mqtt mobile client must share the same topic space, an exchange or trading platform with a latency budget that needs the hardware appliance rather than a software broker, an airline distributing operational events to ground systems, aircraft and partner apis over different protocols, a manufacturer bridging factory mqtt telemetry into an enterprise kafka estate without writing translation services. Of those, a bank building an event mesh across regions where a java jms application and an mqtt mobile client must share the same topic space and an exchange or trading platform with a latency budget that needs the hardware appliance rather than a software broker are not what UiPath is typically brought in for.
What can Solace PubSub+ do that UiPath cannot?
Solace PubSub+ covers Multi-protocol broker, Dynamic message routing, Hardware appliance, Event Portal. UiPath covers Desktop RPA, Cloud RPA, Process mining, Task mining.

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.

UiPath: How much does UiPath cost?

UiPath Automation Cloud Basic starts at $25/month for individuals and small teams. Standard and Enterprise tiers require contacting sales for custom pricing based on organizational needs.

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.

UiPath: What are the limitations of UiPath's Basic tier?

The Basic tier at $25/month is limited to building and running basic personal automations at limited scale, with European region hosting only and bronze-level support. Standard and Enterprise tiers remove these limits.

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.

UiPath: Does UiPath charge for users and robots separately?

UiPath's pricing tiers include base costs, but users, robots, and agents may require additional purchases beyond the tier pricing, depending on organizational requirements.

Source
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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