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Weather · head to head

Weather Underground PWS vs Zoom Earth

Weather Underground PWS logo

Weather Underground PWS

Weather

World's largest personal weather station network

From
Free
Rated
-
Full reviewWebsite
Zoom Earth logo

Zoom Earth

Weather

Free browser-based satellite weather and storm tracking, no account or install

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Weather Underground PWS personal weather station network relies on community contributions; Zoom Earth there are no push notifications or alerts, so it cannot warn you proactively the way a mobile weather app can.
  • They diverge on capability: Weather Underground PWS covers Station network, Zoom Earth covers Global satellite view.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Weather Underground PWS and Zoom Earth actually diverge.

Attributes where Weather Underground PWS and Zoom Earth differ
AttributeWeather Underground PWSZoom Earth
Pricing modelfreeFree, no account required
PlatformsWeb, MobileWeb
Founded1995Unknown

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 Weather Underground PWS

  • Station network
  • Real-time upload
  • Historical data
  • Quality control
  • Community rankings
  • PWS devices
  • Data APIs
  • Weather apps

Only in Zoom Earth

  • Global satellite view
  • Storm tracking
  • MODIS high resolution
  • Historical imagery
  • Precipitation radar overlay
  • No install required

What people use each for

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

Weather Underground PWS

  • Community-sourced weather station networknot Zoom Earth
  • Personal weather monitoring and forecastingnot Zoom Earth
  • Historical weather data accessnot Zoom Earth
  • Severe weather alerts and notificationsnot Zoom Earth

Zoom Earth

  • Watching a hurricane or typhoon track develop without installing an appnot Weather Underground PWS
  • A quick global satellite check before deciding whether a local forecast app is worth openingnot Weather Underground PWS
  • Journalists or researchers needing a citable, no-login satellite view of a weather eventnot Weather Underground PWS
  • Comparing current satellite imagery against archived imagery from years earlier for the same regionnot Weather Underground PWS

Where each one falls short

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

Weather Underground PWS

  • Personal weather station network relies on community contributions
  • Data accuracy varies by station quality

Zoom Earth

  • There are no push notifications or alerts, so it cannot warn you proactively the way a mobile weather app can.
  • It has no offline mode, so it is unusable without an internet connection, unlike apps that cache forecasts.
  • Forecasting is minimal; it shows what the satellites and radar currently see rather than a detailed hyperlocal forecast.
  • Being free and unaccountable to a paying customer base, there is no committed support channel if the site or a data feed goes down.
  • The browser-only interface is less convenient for quick daily checks than a home-screen app icon with widgets.

Pricing, plan by plan

Weather Underground PWS

Free
  • FreeFree
    • Station registration
    • Data upload
    • Dashboard

Zoom Earth

Free
  • Zoom EarthFree
    • Full satellite and storm tracking access
    • No account, no ads-gated tier
    • No offline mode or push alerts

Which should you pick?

Choose Weather Underground PWS if

  • You need station network.
  • You want to start without paying.
  • You work on Web, Mobile.
  • You also want real-time upload.
Weather Underground PWS review

Choose Zoom Earth if

  • You need global satellite view.
  • You want to start without paying.
  • You also want storm tracking.
Zoom Earth review

Questions people ask

Is Weather Underground PWS or Zoom Earth better?
Neither clearly leads. Weather Underground PWS starts at Free and Zoom Earth at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Weather Underground PWS or Zoom Earth?
Weather Underground PWS starts at Free and Zoom Earth at Free.
Does Weather Underground PWS or Zoom Earth run on more platforms?
Weather Underground PWS runs on Web, Mobile. Zoom Earth runs on Web.
Can I use Weather Underground PWS for free?
Both have a free tier, so you can try either at no cost before committing.
What is Weather Underground PWS best used for?
Weather Underground PWS is most often used for community-sourced weather station network, personal weather monitoring and forecasting, historical weather data access, severe weather alerts and notifications. Of those, community-sourced weather station network and personal weather monitoring and forecasting are not what Zoom Earth is typically brought in for.
What can Weather Underground PWS do that Zoom Earth cannot?
Weather Underground PWS covers Station network, Real-time upload, Historical data, Quality control. Zoom Earth covers Global satellite view, Storm tracking, MODIS high resolution, Historical imagery.

Answered from the vendors’ own pages

Weather Underground PWS: Is there a cost to join the Weather Underground Personal Weather Station network?

No cost is disclosed for joining the Weather Underground PWS network. The site encourages users to join and contribute weather data.

Source
Zoom Earth: Do I need to create an account?

No. Zoom Earth works without registration or login.

Zoom Earth: Is there a mobile app?

No, it is a responsive website that works in mobile browsers rather than a native app.

Zoom Earth: How current is the imagery?

Geostationary imagery updates roughly every 10 to 15 minutes; higher-resolution MODIS imagery updates about twice a day.

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