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Databases · head to head

VerneMQ vs YugabyteDB

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
YugabyteDB logo

YugabyteDB

Databases

Open source distributed SQL database for cloud native apps

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real 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.; YugabyteDB missing PostgreSQL functions and extensions despite claiming compatibility
  • They diverge on capability: VerneMQ covers Erlang/OTP clustering, YugabyteDB covers PostgreSQL Compatible.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which VerneMQ and YugabyteDB actually diverge.

Attributes where VerneMQ and YugabyteDB differ
AttributeVerneMQYugabyteDB
Pricing modelquoteUnknown
PlatformsLinux, Docker, macOS, KubernetesCloud, On-premises, Kubernetes
FoundedUnknown2016

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 VerneMQ

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

Only in YugabyteDB

  • PostgreSQL Compatible
  • Distributed SQL
  • Geo-distribution
  • Linear Scalability
  • High Availability
  • ACID Transactions
  • CDC Support
  • PostgreSQL

What people use each for

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

VerneMQ

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

YugabyteDB

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

Where each one falls short

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

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.

YugabyteDB

  • Missing PostgreSQL functions and extensions despite claiming compatibility
  • Not a true PostgreSQL replacement requiring schema and query compatibility testing before migration
  • Requires careful isolation level management or risk data corruption in production
  • Lacks built-in OLAP capabilities, requiring external systems for analytics
  • Coupled compute and storage scaling reduces optimization flexibility

Pricing, plan by plan

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

YugabyteDB

Free

No published plan breakdown. See the YugabyteDB review.

Which should you pick?

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

Choose YugabyteDB if

  • You need postgresql compatible.
  • You want to start without paying.
  • You work on Cloud, On-premises, Kubernetes.
  • You also want distributed sql.
YugabyteDB review

Questions people ask

Is VerneMQ or YugabyteDB better?
Neither clearly leads. VerneMQ starts at Free and YugabyteDB at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, VerneMQ or YugabyteDB?
VerneMQ starts at Free and YugabyteDB at Free.
Does VerneMQ or YugabyteDB run on more platforms?
VerneMQ runs on Linux, Docker, macOS, Kubernetes. YugabyteDB runs on Cloud, On-premises, Kubernetes.
Can I use VerneMQ for free?
Both have a free tier, so you can try either at no cost before committing.
What is VerneMQ best used for?
VerneMQ is most often used for an industrial operator that wants an mqtt broker with predictable memory behaviour and no data integration features it will not use, a team building from source to stay strictly under apache 2.0 terms with no vendor licence entanglement, a deployment needing custom authentication logic implemented as a plugin in lua or over a webhook, an organisation that wants a broker maintained by a small european company rather than by a vendor that keeps changing licences. Of those, an industrial operator that wants an mqtt broker with predictable memory behaviour and no data integration features it will not use and a team building from source to stay strictly under apache 2.0 terms with no vendor licence entanglement are not what YugabyteDB is typically brought in for.
What can VerneMQ do that YugabyteDB cannot?
VerneMQ covers Erlang/OTP clustering, MQTT 5.0 support, Plugin system, Backpressure handling. YugabyteDB covers PostgreSQL Compatible, Distributed SQL, Geo-distribution, Linear Scalability.

Answered from the vendors’ own pages

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.

YugabyteDB: Is YugabyteDB a true drop-in replacement for PostgreSQL?

No, YugabyteDB is PostgreSQL-compatible but not a zero-change drop-in replacement. It requires compatibility testing with queries, stored procedures, and ORM configurations before migration.

Source
VerneMQ: Is the project still maintained?

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

YugabyteDB: What isolation levels does YugabyteDB support?

YugabyteDB allows per-query selection between serializable isolation for critical operations and read-committed for analytics. However, this flexibility requires careful management to avoid accidental data corruption.

Source
VerneMQ: Does it have a managed cloud?

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

YugabyteDB: Does YugabyteDB support both SQL and NoSQL workloads?

Yes, YugabyteDB offers YSQL for PostgreSQL-compatible SQL and YCQL for Cassandra-like NoSQL workloads, using the same DocDB storage engine to support both simultaneously.

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.

YugabyteDB: Can YugabyteDB scale compute and storage independently?

No, YugabyteDB couples compute and storage scaling, unlike TiDB which separates them. This means scaling decisions are less flexible and optimization is more complex.

Source
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