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Databases · head to head

Oracle Database vs VerneMQ

Oracle Database logo

Oracle Database

Databases

The world's most complete, reliable, and secure database

From
Free
Rated
-
Full reviewWebsite
VerneMQ logo

VerneMQ

Databases

Erlang MQTT broker whose source is Apache 2.0 but whose official binaries need a paid subscription

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Oracle Database high licensing costs for Enterprise Edition with option packs potentially doubling the effective per-processor cost; VerneMQ the official binaries and Docker images are not Apache 2.0 but sit under a EULA requiring a yearly commercial subscription, a distinction easy to miss and awkward to discover during a licence audit.
  • They diverge on capability: Oracle Database covers PL/SQL, VerneMQ covers Erlang/OTP clustering.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Oracle Database and VerneMQ actually diverge.

Attributes where Oracle Database and VerneMQ differ
AttributeOracle DatabaseVerneMQ
Pricing modelUnknownquote
PlatformsOn-premises, Oracle Cloud, Linux, Windows, UnixLinux, Docker, macOS, Kubernetes
Founded1977Unknown

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

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 Database

  • PL/SQL
  • Real Application Clusters
  • Data Guard
  • Advanced Compression
  • Partitioning
  • In-memory Database
  • Multitenant Architecture
  • Oracle Cloud

Only in VerneMQ

  • Erlang/OTP clustering
  • MQTT 5.0 support
  • Plugin system
  • Backpressure handling
  • Bridge support
  • Metrics export
  • MQTT over WebSockets
  • Pluggable auth backends

What people use each for

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

Oracle Database

  • Transaction processingnot VerneMQ
  • Data storagenot VerneMQ
  • Application backendnot VerneMQ
  • Reportingnot VerneMQ
  • Data analyticsnot VerneMQ

VerneMQ

  • An industrial operator that wants an MQTT broker with predictable memory behaviour and no data integration features it will not usenot Oracle Database
  • A team building from source to stay strictly under Apache 2.0 terms with no vendor licence entanglementnot Oracle Database
  • A deployment needing custom authentication logic implemented as a plugin in Lua or over a webhooknot Oracle Database
  • An organisation that wants a broker maintained by a small European company rather than by a vendor that keeps changing licencesnot Oracle Database

Where each one falls short

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

Oracle Database

  • High licensing costs for Enterprise Edition with option packs potentially doubling the effective per-processor cost
  • Requires skilled database administrators for proper setup, configuration, and maintenance
  • High hardware requirements increase infrastructure costs; less suitable for resource-constrained environments

VerneMQ

  • The official binaries and Docker images are not Apache 2.0 but sit under a EULA requiring a yearly commercial subscription, a distinction easy to miss and awkward to discover during a licence audit.
  • Octavo Labs is a very small company, so support depth, response times and the bus factor on the codebase are materially thinner than at HiveMQ or EMQ.
  • There is no data integration or rule engine layer, so routing messages into a database means writing and operating your own consumer service.
  • Operating an Erlang cluster requires runtime knowledge that most teams do not have and will use for nothing else in their stack.
  • There is no vendor-managed cloud offering, so every deployment is self-operated with the infrastructure and on-call cost that implies.

Pricing, plan by plan

Oracle Database

Free

No published plan breakdown. See the Oracle Database review.

VerneMQ

Free
  • Source buildFree
    • Apache 2.0 licensed source from GitHub
    • Full clustering and plugin capability
    • You compile and package it yourself
  • Binary packages and Docker images$undefined/year
    • Covered by the VerneMQ EULA, not Apache 2.0
    • Yearly usage subscription expected for commercial use
    • Official builds and Docker images
  • Commercial support$undefined/year
    • Evaluation, customisation and operations assistance
    • Custom development
    • Long-term maintenance agreements

Which should you pick?

Choose Oracle Database if

  • You need pl/sql.
  • You want to start without paying.
  • You work on On-premises, Oracle Cloud, Linux, Windows, Unix.
  • You also want real application clusters.
Oracle Database review

Choose VerneMQ if

  • You need erlang/otp clustering.
  • You want to start without paying.
  • You work on Linux, Docker, macOS, Kubernetes.
  • You also want mqtt 5.0 support.
VerneMQ review

Questions people ask

Is Oracle Database or VerneMQ better?
Neither clearly leads. Oracle Database starts at Free and VerneMQ at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Oracle Database or VerneMQ?
Oracle Database starts at Free and VerneMQ at Free.
Does Oracle Database or VerneMQ run on more platforms?
Oracle Database runs on On-premises, Oracle Cloud, Linux, Windows, Unix. VerneMQ runs on Linux, Docker, macOS, Kubernetes.
Can I use Oracle Database for free?
Both have a free tier, so you can try either at no cost before committing.
What is Oracle Database best used for?
Oracle Database is most often used for transaction processing, data storage, application backend, reporting. Of those, transaction processing and data storage are not what VerneMQ is typically brought in for.
What can Oracle Database do that VerneMQ cannot?
Oracle Database covers PL/SQL, Real Application Clusters, Data Guard, Advanced Compression. VerneMQ covers Erlang/OTP clustering, MQTT 5.0 support, Plugin system, Backpressure handling.

Answered from the vendors’ own pages

Oracle Database: What is the licensing cost of Oracle Database Enterprise Edition?

Oracle Database Enterprise Edition is priced at 47,500 USD per processor as of April 2026. Named User Plus licensing costs 950 USD per user. Pricing varies based on licensing metric chosen.

Source
VerneMQ: Is VerneMQ free?

The source is Apache 2.0 and free. The official binary packages and Docker images are covered by a separate EULA that expects a yearly fee for commercial use.

Oracle Database: Does Oracle Database offer a free tier or trial?

Oracle Database offers Oracle Database Free Edition, a no-cost version for development and testing. However, no free trial is available for paid editions.

Source
VerneMQ: Is the project still maintained?

Yes. Octavo Labs AG in Zurich continues to publish 2.x releases, most recently in 2026.

Oracle Database: What are the deployment options for Oracle Database?

Oracle Database can be deployed on premises or through Oracle Cloud Infrastructure. Pricing and features vary based on deployment model selected.

Source
VerneMQ: Does it have a managed cloud?

No. Every deployment is self-hosted, with commercial support available from Octavo Labs.

Oracle Database: What database management capabilities does Oracle Database provide?

Oracle Database is a converged, multi-model database management system offering in-memory computing, NoSQL, and MySQL database options with comprehensive data management and security features.

Source
VerneMQ: How does it compare to EMQX?

Narrower in features and without a rule engine, but with a simpler licence story for source builds after EMQX moved to BSL.

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