Is MQTT or Shelly better?

Neither clearly leads. MQTT starts at Free and Shelly at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, MQTT or Shelly?

MQTT starts at Free and Shelly at Free.

Does MQTT or Shelly run on more platforms?

MQTT runs on Any platform, Embedded devices, Cloud, Edge computing. Shelly runs on Web, Mobile app, Cloud, Local network.

Can I use MQTT for free?

Both have a free tier, so you can try either at no cost before committing.

What is MQTT best used for?

MQTT is most often used for iot messaging, sensor data, real-time updates, device telemetry. Of those, iot messaging and sensor data are not what Shelly is typically brought in for.

What can MQTT do that Shelly cannot?

MQTT covers Publish-Subscribe, Lightweight, QoS Levels, Retained Messages. Shelly covers Local Control, Open API, MQTT Support, Energy Monitoring.

Smart Home · head to head

MQTT vs Shelly

MQTT

Smart Home

Lightweight messaging protocol for IoT devices

From: Free
Rated: -

Full review Website

Shelly

Smart Home

Powerful WiFi smart home devices with local control

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: MQTT mQTT is an open-source protocol standard with no commercial pricing; not a commercial product; Shelly premium features limited to cloud-based functionality; local control requires separate setup
They diverge on capability: MQTT covers Publish-Subscribe, Shelly covers Local Control.
Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which MQTT and Shelly actually diverge.

Attributes where MQTT and Shelly differ
Attribute	MQTT	Shelly
Pricing model	open-source	Unknown
Platforms	Any platform, Embedded devices, Cloud, Edge computing	Web, Mobile app, Cloud, Local network
Founded	1999	2016

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

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 MQTT

Publish-Subscribe
Lightweight
QoS Levels
Retained Messages
IoT platforms
Home automation
Cloud services
Edge devices

Only in Shelly

Local Control
Open API
MQTT Support
Energy Monitoring
Home Assistant
Alexa
Google Home
SmartThings

What people use each for

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

MQTT

IoT messagingnot Shelly
Sensor datanot Shelly
Real-time updatesnot Shelly
Device telemetrynot Shelly

Shelly

Smart home automation and controlnot MQTT
Energy monitoring and managementnot MQTT
WiFi/Bluetooth/Matter device integrationnot MQTT

Where each one falls short

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

MQTT

MQTT is an open-source protocol standard with no commercial pricing; not a commercial product

Shelly

Premium features limited to cloud-based functionality; local control requires separate setup
Device-specific capabilities vary; not all features available across entire product range

Pricing, plan by plan

MQTT

Free

Open ProtocolFree
- Publish-subscribe
- Lightweight
- QoS levels

Shelly

Free

No published plan breakdown. See the Shelly review.

Which should you pick?

Choose MQTT if

You need publish-subscribe.
You want to start without paying.
You work on Any platform, Embedded devices, Cloud, Edge computing.
You also want lightweight.

MQTT review

Choose Shelly if

You need local control.
You want to start without paying.
You work on Web, Mobile app, Cloud, Local network.
You also want open api.

Shelly review

Questions people ask

Is MQTT or Shelly better?: Neither clearly leads. MQTT starts at Free and Shelly at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, MQTT or Shelly?: MQTT starts at Free and Shelly at Free.
Does MQTT or Shelly run on more platforms?: MQTT runs on Any platform, Embedded devices, Cloud, Edge computing. Shelly runs on Web, Mobile app, Cloud, Local network.
Can I use MQTT for free?: Both have a free tier, so you can try either at no cost before committing.
What is MQTT best used for?: MQTT is most often used for iot messaging, sensor data, real-time updates, device telemetry. Of those, iot messaging and sensor data are not what Shelly is typically brought in for.
What can MQTT do that Shelly cannot?: MQTT covers Publish-Subscribe, Lightweight, QoS Levels, Retained Messages. Shelly covers Local Control, Open API, MQTT Support, Energy Monitoring.

Answered from the vendors’ own pages

MQTT: Does MQTT have a commercial license cost?

MQTT is an open-source communication protocol and standard. No pricing is published because MQTT itself is not a commercial product for sale.

Source

Shelly: Does Shelly offer a free tier or paid premium service?

Shelly offers a free service with an option to upgrade. The site mentions Go Premium in the Shelly app, which provides more automation and control capabilities. A Shelly Cloud Premium Voucher is available for purchase.

Source

Shelly: What is the difference between free Shelly and Shelly Cloud Premium?

The free version provides basic functionality, while Premium unlocks more automation options and additional control features. Specific pricing for Premium is not disclosed on the homepage.

Source

Shelly: Can I purchase Shelly Cloud Premium directly?

Yes. Shelly Cloud Premium Vouchers are available for purchase through the Shelly shop. Pricing details are available on the product shop page.

Source

MQTT vs Shelly

MQTT

Shelly

The short version

Where they differ

What each one covers

Only in MQTT

Only in Shelly

What people use each for

MQTT

Shelly

Where each one falls short

MQTT

Shelly

Pricing, plan by plan

MQTT

Shelly

Which should you pick?

Choose MQTT if

Choose Shelly if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on MQTT

More on Shelly

Keep looking

Other head to heads