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Weather · head to head

Ambient Weather Network vs PurpleAir

Ambient Weather Network logo

Ambient Weather Network

Weather

Connect your weather station to the cloud

From
Free
Rated
-
Full reviewWebsite
PurpleAir logo

PurpleAir

Weather

Real-time air quality monitoring for communities

From
$229/one-time
Rated
-
Full reviewWebsite

The short version

  • Only Ambient Weather Network has a free tier, so it costs nothing to try first.
  • Each has a real cost: Ambient Weather Network the App Store listing states the Ambient Weather Network app requires iOS 14.1 or later, and the underlying station apps (awnet, AmbientTool) are tied to specific discontinued hardware models.; PurpleAir purpleAir sensors are one-time hardware purchases rather than a subscription, priced $199 to $279 USD per unit for named models (PA-I-Indoor, PA-II, PA-II-SD), per the vendor's own store (archived, 2021).
  • They diverge on capability: Ambient Weather Network covers Cloud connectivity, PurpleAir covers PM2.5 monitoring.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Ambient Weather Network and PurpleAir actually diverge.

Attributes where Ambient Weather Network and PurpleAir differ
AttributeAmbient Weather NetworkPurpleAir
Starting priceFree$229/one-time
Pricing modelfreeone-time
Free tierYesNo
PlatformsWeb, Ios, AndroidWeb, Api, Hardware
Founded20032015

Identical on both: user rating (Not yet rated), category (Weather).

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 Ambient Weather Network

  • Cloud connectivity
  • Real-time data
  • Historical storage
  • Alerts
  • Public sharing
  • Alexa
  • Google Home
  • IFTTT

Only in PurpleAir

  • PM2.5 monitoring
  • Real-time map
  • Historical data
  • Community network
  • API access
  • API access
  • Home Assistant
  • Data downloads

Both cover

  • Web support

What people use each for

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

Ambient Weather Network

  • Professional Work
  • Content Creation

PurpleAir

  • Professional Work
  • Content Creation

Both are used for professional work, content creation, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

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

Ambient Weather Network

  • The App Store listing states the Ambient Weather Network app requires iOS 14.1 or later, and the underlying station apps (awnet, AmbientTool) are tied to specific discontinued hardware models.

PurpleAir

  • PurpleAir sensors are one-time hardware purchases rather than a subscription, priced $199 to $279 USD per unit for named models (PA-I-Indoor, PA-II, PA-II-SD), per the vendor's own store (archived, 2021).

Pricing, plan by plan

Ambient Weather Network

Free
  • FreeFree
    • Data upload
    • Dashboard
    • API access

PurpleAir

$229/one-time
  • Outdoor Sensor$229/one-time
    • PM2.5 monitoring
    • Cloud connectivity
    • Map access
  • Indoor Sensor$199/one-time
    • Indoor monitoring
    • WiFi enabled
    • Real-time data

Which should you pick?

Choose Ambient Weather Network if

  • You need cloud connectivity.
  • You want to start without paying.
  • You work on Web, Ios, Android.
  • You also want real-time data.
Ambient Weather Network review

Choose PurpleAir if

  • You need pm2.5 monitoring.
  • You work on Web, Api, Hardware.
  • You also want real-time map.
PurpleAir review

Questions people ask

Is Ambient Weather Network or PurpleAir better?
Neither clearly leads. Ambient Weather Network starts at Free and PurpleAir at $229/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ambient Weather Network or PurpleAir?
Ambient Weather Network has a free tier; the other does not. Paid plans start at Free for Ambient Weather Network and $229/one-time for PurpleAir.
Does Ambient Weather Network or PurpleAir run on more platforms?
Ambient Weather Network runs on Web, Ios, Android. PurpleAir runs on Web, Api, Hardware.
Can I use Ambient Weather Network for free?
Yes. Ambient Weather Network has a free tier, so you can try it without paying. PurpleAir starts at $229/one-time.
What is Ambient Weather Network best used for?
Ambient Weather Network is most often used for professional work, content creation.
What can Ambient Weather Network do that PurpleAir cannot?
Ambient Weather Network covers Cloud connectivity, Real-time data, Historical storage, Alerts. PurpleAir covers PM2.5 monitoring, Real-time map, Historical data, Community network. Both handle Web support.
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