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Weather · head to head

Aeris Weather vs EPA AirNow

Aeris Weather logo

Aeris Weather

Weather

Powerful weather API with mapping solutions

From
Free
Rated
-
Full reviewWebsite
EPA AirNow logo

EPA AirNow

Weather

Official U.S. government air quality information

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Aeris Weather aerisWeather now sells as Xweather under Vaisala; EPA AirNow air quality data availability depends on nearby monitoring stations, can show no data found near a location when no monitor is close enough
  • They diverge on capability: Aeris Weather covers Weather API, EPA AirNow covers Official AQI data.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Aeris Weather and EPA AirNow actually diverge.

Attributes where Aeris Weather and EPA AirNow differ
AttributeAeris WeatherEPA AirNow
Pricing modelfreemiumfree
PlatformsApi, Web, MobileiOS, Android, Web
Founded20111970

Identical on both: starting price (Free), free tier (Yes), 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 Aeris Weather

  • Weather API
  • Interactive maps
  • Severe weather alerts
  • Tropical data
  • Historical records
  • REST API
  • Mapping SDKs
  • Mobile SDKs

Only in EPA AirNow

  • Official AQI data
  • Air quality forecasts
  • Fire & smoke data
  • Health recommendations
  • API access
  • Data feeds
  • Widgets
  • API

Both cover

  • Api support
  • Web support

What people use each for

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

Aeris Weather

  • Weather data and forecastingnot EPA AirNow
  • Mission-critical weather-dependent decisionsnot EPA AirNow
  • High-reliability weather intelligence servicesnot EPA AirNow
  • Multi-industry weather data distributionnot EPA AirNow

EPA AirNow

  • Checking current Air Quality Index (AQI) for a location or any searched areanot Aeris Weather
  • Viewing next-day AQI forecasts to plan outdoor activitiesnot Aeris Weather
  • Monitoring wildfire smoke via the Fire and Smoke Map (built with the U.S. Forest Service)not Aeris Weather
  • Saving multiple locations for quick referencenot Aeris Weather
  • Receiving optional push notifications for local AQI forecastsnot Aeris Weather

Where each one falls short

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

Aeris Weather

  • AerisWeather now sells as Xweather under Vaisala
  • The free Developer tier is capped at 15,000 API accesses per month and the service pauses once the limit is reached
  • The Developer tier gets community support only
  • The self-serve paid subscription is EUR 300 per month for 1,000,000 accesses per month
  • Anything beyond 1,000,000 accesses per month requires contacting sales for a custom arrangement
  • Dedicated support and custom SLA guarantees are enterprise only
  • Free tier usage resets on the account creation date rather than the calendar month

EPA AirNow

  • Air quality data availability depends on nearby monitoring stations, can show no data found near a location when no monitor is close enough
  • Interactive monitor map (PM2.5, PM10, ozone) coverage documented on the primary source is U.S.-focused
  • As a government-run service it offers no paid tiers, proprietary data sources, or customization options found in commercial weather/air-quality apps

Pricing, plan by plan

Aeris Weather

Free
  • DeveloperFree
    • 1,000 calls/day
    • Basic data
    • Maps
  • Professional$100/month
    • Unlimited calls
    • All data
    • Premium support

EPA AirNow

Free

No published plan breakdown. See the EPA AirNow review.

Which should you pick?

Choose Aeris Weather if

  • You need weather api.
  • You want to start without paying.
  • You work on Api, Web, Mobile.
  • You also want interactive maps.
Aeris Weather review

Choose EPA AirNow if

  • You need official aqi data.
  • You want to start without paying.
  • You work on iOS, Android, Web.
  • You also want air quality forecasts.
EPA AirNow review

Questions people ask

Is Aeris Weather or EPA AirNow better?
Neither clearly leads. Aeris Weather starts at Free and EPA AirNow at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Aeris Weather or EPA AirNow?
Aeris Weather starts at Free and EPA AirNow at Free.
Does Aeris Weather or EPA AirNow run on more platforms?
Aeris Weather runs on Api, Web, Mobile. EPA AirNow runs on iOS, Android, Web.
Can I use Aeris Weather for free?
Both have a free tier, so you can try either at no cost before committing.
What is Aeris Weather best used for?
Aeris Weather is most often used for weather data and forecasting, mission-critical weather-dependent decisions, high-reliability weather intelligence services, multi-industry weather data distribution. Of those, weather data and forecasting and mission-critical weather-dependent decisions are not what EPA AirNow is typically brought in for.
What can Aeris Weather do that EPA AirNow cannot?
Aeris Weather covers Weather API, Interactive maps, Severe weather alerts, Tropical data. EPA AirNow covers Official AQI data, Air quality forecasts, Fire & smoke data, Health recommendations. Both handle Api support, Web support.

Answered from the vendors’ own pages

Aeris Weather: How is Xweather pricing structured?

Xweather offers custom pricing for its software products and weather API. Pricing reflects deployment scale, data complexity, reliability requirements, and service scope. Contact Xweather for a personalized quote tailored to your needs.

Source
EPA AirNow: Is AirNow.gov free to use?

Yes. AirNow.gov is a free service operated by the EPA and its partners that provides air quality data, forecasts, maps, and educational resources at no cost to users.

Source
Aeris Weather: Does Xweather offer a pay-as-you-go weather API?

Yes. Xweather provides a free weather API key with pay-as-you-go pricing available. Specific rates and API tier details are available at the Xweather API signup portal or by contacting the sales team.

Source
EPA AirNow: Are there any subscription costs or fees associated with AirNow.gov?

No. AirNow.gov offers all services, data access, and tools completely free. There are no subscription tiers, fees, or payment options of any kind.

Source
Aeris Weather: What products does Xweather offer pricing for?

Xweather's software products include Protect, Optimize, Observe, Horizon, RoadAI, WeatherDesk, and Powerup. Individual pricing for each product is determined by your deployment requirements and service agreements. Contact Xweather to discuss subscriptions, tiers, SLAs, and specific pricing.

Source
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