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MQTT vs TP-Link Kasa

MQTT logo

MQTT

Smart Home

Lightweight messaging protocol for IoT devices

From
Free
Rated
-
Full reviewWebsite
TP-Link Kasa logo

TP-Link Kasa

Smart Home

Affordable smart home devices with easy setup

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: MQTT mQTT is an open-source protocol standard with no commercial pricing; not a commercial product; TP-Link Kasa plus plan only covers one camera per subscription
  • They diverge on capability: MQTT covers Publish-Subscribe, TP-Link Kasa covers Affordable.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which MQTT and TP-Link Kasa actually diverge.

Attributes where MQTT and TP-Link Kasa differ
AttributeMQTTTP-Link Kasa
Pricing modelopen-sourcefreemium
PlatformsAny platform, Embedded devices, Cloud, Edge computingIOS, Android, Web
Founded19991996

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 TP-Link Kasa

  • Affordable
  • No Hub Required
  • Energy Monitoring
  • Scheduling
  • Alexa
  • Google Home
  • SmartThings
  • IFTTT

What people use each for

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

MQTT

  • IoT messagingnot TP-Link Kasa
  • Sensor datanot TP-Link Kasa
  • Real-time updatesnot TP-Link Kasa
  • Device telemetrynot TP-Link Kasa

TP-Link Kasa

  • Home security camera recording and playbacknot MQTT
  • Smart home automation monitoringnot MQTT
  • Pet and baby monitoringnot MQTT
  • Outdoor property surveillancenot 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

TP-Link Kasa

  • Plus plan only covers one camera per subscription
  • No free trial mentioned for paid tiers
  • Premium plan requires annual commitment discount to reach $100/year pricing
  • Video retention limited to 30 days even on paid plans

Pricing, plan by plan

MQTT

Free
  • Open ProtocolFree
    • Publish-subscribe
    • Lightweight
    • QoS levels

TP-Link Kasa

Free
  • Free TierFree
    • Live streaming
    • Push-to-talk
    • Activity zones
  • Plus$3/month
    • 30 days of video history
    • Manual clip recording
    • Video sharing
  • Premium$10/month
    • Covers up to 10 cameras
    • All Plus features
    • Snapshots with alerts

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 TP-Link Kasa if

  • You need affordable.
  • You want to start without paying.
  • You work on IOS, Android, Web.
  • You also want no hub required.
TP-Link Kasa review

Questions people ask

Is MQTT or TP-Link Kasa better?
Neither clearly leads. MQTT starts at Free and TP-Link Kasa at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, MQTT or TP-Link Kasa?
MQTT starts at Free and TP-Link Kasa at Free.
Does MQTT or TP-Link Kasa run on more platforms?
MQTT runs on Any platform, Embedded devices, Cloud, Edge computing. TP-Link Kasa runs on IOS, Android, Web.
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 TP-Link Kasa is typically brought in for.
What can MQTT do that TP-Link Kasa cannot?
MQTT covers Publish-Subscribe, Lightweight, QoS Levels, Retained Messages. TP-Link Kasa covers Affordable, No Hub Required, Energy Monitoring, Scheduling.

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
TP-Link Kasa: Does Kasa Care offer a free plan?

Yes, Kasa's free tier includes live streaming, push-to-talk, activity zones, and activity notifications at no cost.

Source
TP-Link Kasa: What's the difference between Kasa Plus and Premium?

Plus costs $3/month and provides 30 days of video history per camera. Premium costs $10/month and covers up to 10 cameras with all Plus features. Premium is billed at $100/year vs Plus at $30/year per camera.

Source
TP-Link Kasa: Can Premium cover all my cameras?

Yes, Kasa Premium covers up to 10 cameras under one $10/month subscription, making it more economical than Plus for multiple devices.

Source
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