Softwr

Smart Home · head to head

Apple HomeKit vs Arduino Cloud

Apple HomeKit logo

Apple HomeKit

Smart Home

Apple's secure smart home platform integrated with Siri

From
Free
Rated
-
Full reviewWebsite
Arduino Cloud logo

Arduino Cloud

Smart Home

Cloud platform for Arduino IoT devices and applications

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Apple HomeKit requires Apple device for setup and remote access; limited interoperability with non-Apple devices; Arduino Cloud the free plan allows 2 connected devices, 5 variables each and one day of data retention
  • They diverge on capability: Apple HomeKit covers Siri Integration, Arduino Cloud covers Device Connectivity.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Apple HomeKit and Arduino Cloud actually diverge.

Attributes where Apple HomeKit and Arduino Cloud differ
AttributeApple HomeKitArduino Cloud
Pricing modelUnknownsubscription
PlatformsiOS, iPadOS, macOS, Apple TV, HomePod, Web (via iCloud.com)Arduino devices, Cloud, Mobile app, Web dashboard
Founded20142005

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 Apple HomeKit

  • Siri Integration
  • End-to-End Encryption
  • Automation Scenes
  • Remote Access
  • HomePod
  • Apple TV
  • Apple Watch
  • Third-party accessories

Only in Arduino Cloud

  • Device Connectivity
  • Cloud Storage
  • Real-Time Sync
  • Security
  • Arduino IDE
  • Mobile app
  • REST API
  • Integration services

What people use each for

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

Apple HomeKit

  • Unified control of multi-vendor smart accessoriesnot Arduino Cloud
  • Time, location, and sensor-triggered automationsnot Arduino Cloud
  • Siri voice control of accessoriesnot Arduino Cloud
  • Remote access via a Home Hubnot Arduino Cloud
  • Grouping accessories into scenesnot Arduino Cloud

Arduino Cloud

  • Connecting Arduino boards to a cloud dashboardnot Apple HomeKit
  • Over-the-air firmware updates to deployed devicesnot Apple HomeKit
  • Logging sensor data and charting it over timenot Apple HomeKit
  • Triggering notifications from device thresholdsnot Apple HomeKit
  • Classroom IoT projects on the School plannot Apple HomeKit

Where each one falls short

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

Apple HomeKit

  • Requires Apple device for setup and remote access; limited interoperability with non-Apple devices
  • HomeKit devices require manufacturer certification, limiting product selection compared to alternatives
  • Automations are more limited compared to open platforms like Home Assistant or professional systems

Arduino Cloud

  • The free plan allows 2 connected devices, 5 variables each and one day of data retention
  • Free accounts are limited to 25 compilations a day and 10 trigger notifications a day
  • The Maker plan at $72 a year lifts devices to 25 and retention to 3 months, still for a single user
  • Team pricing jumps to $1,000 a year
  • Two years of data retention and unlimited ingestion require Enterprise

Pricing, plan by plan

Apple HomeKit

Free
  • HomeKit (free)Free
    • Local control of HomeKit devices
    • Siri voice control
    • Device automations
  • Home hub (requires device purchase)$undefined/mo
    • Remote access
    • HomeKit Secure Video (free with iCloud+ 2TB)
    • HomeKit automations
  • iCloud+ 2TB (required for Secure Video)$9.99/month
    • HomeKit Secure Video 4K (in iOS 27)
    • 2TB iCloud storage
    • Private email relay

Arduino Cloud

Free
  • MakerFree
    • 2 devices
    • Basic features
    • Cloud access
  • Maker Plus$7/month
    • Up to 10 devices
    • Advanced features
    • Better storage

Which should you pick?

Choose Apple HomeKit if

  • You need siri integration.
  • You want to start without paying.
  • You work on iOS, iPadOS, macOS, Apple TV, HomePod, Web (via iCloud.com).
  • You also want end-to-end encryption.
Apple HomeKit review

Choose Arduino Cloud if

  • You need device connectivity.
  • You want to start without paying.
  • You work on Arduino devices, Cloud, Mobile app, Web dashboard.
  • You also want cloud storage.
Arduino Cloud review

Questions people ask

Is Apple HomeKit or Arduino Cloud better?
Neither clearly leads. Apple HomeKit starts at Free and Arduino Cloud at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Apple HomeKit or Arduino Cloud?
Apple HomeKit starts at Free and Arduino Cloud at Free.
Does Apple HomeKit or Arduino Cloud run on more platforms?
Apple HomeKit runs on iOS, iPadOS, macOS, Apple TV, HomePod, Web (via iCloud.com). Arduino Cloud runs on Arduino devices, Cloud, Mobile app, Web dashboard.
Can I use Apple HomeKit for free?
Both have a free tier, so you can try either at no cost before committing.
What is Apple HomeKit best used for?
Apple HomeKit is most often used for unified control of multi-vendor smart accessories, time, location, and sensor-triggered automations, siri voice control of accessories, remote access via a home hub. Of those, unified control of multi-vendor smart accessories and time, location, and sensor-triggered automations are not what Arduino Cloud is typically brought in for.
What can Apple HomeKit do that Arduino Cloud cannot?
Apple HomeKit covers Siri Integration, End-to-End Encryption, Automation Scenes, Remote Access. Arduino Cloud covers Device Connectivity, Cloud Storage, Real-Time Sync, Security.

Answered from the vendors’ own pages

Apple HomeKit: Does Apple HomeKit require a home hub?

A home hub is required for remote access and automations. Apple TV 4K, HomePod (2nd gen), or HomePod mini can serve as hubs.

Source
Apple HomeKit: Is HomeKit data encrypted?

Yes. HomeKit uses end-to-end encryption for all data and communications with HomeKit devices, keeping all home data secure.

Source
Apple HomeKit: Does HomeKit support Thread?

Yes. Thread-enabled accessories require a Thread-enabled home hub such as Apple TV 4K, HomePod mini, or iPhone running iOS 18. Thread provides improved reliability and responsiveness for HomeKit devices.

Source
Apple HomeKit: What devices are compatible with HomeKit?

HomeKit supports thousands of certified devices including lights, locks, thermostats, cameras, and plugs from manufacturers like Philips Hue, Yale, Ecobee, and Logitech.

Source
Apple HomeKit: Does HomeKit support Matter?

Yes. HomeKit supports Matter, enabling HomeKit devices to work with other ecosystems like Amazon Alexa and Google Home on the same Matter protocol.

Source
Share

Related pages

More on Apple HomeKit

More on Arduino Cloud

Keep looking

Other head to heads