Is Wunderground safe to use?

Wunderground integrates 18 third-party SDKs spanning infrastructure, advertising, and analytics. Its App Store privacy label declares cross-app tracking via Location, Search History, Identifiers, Usage Data, and Other Data. It collects data linked to your identity including Purchases, Location, User Content, and Search History and 4 more categories. It includes 3 advertising or attribution SDKs. Whether this is acceptable depends on your personal privacy preferences.

What permissions does Wunderground need?

Wunderground requests 7 iOS permissions: App Tracking Transparency, Photo Library, Location (When In Use), Location (Always), Location (Always & When In Use), Face ID, and Save to Photo Library.

What data does Wunderground collect?

According to its App Store privacy label, Wunderground declares cross-app tracking via Location, Search History, Identifiers, Usage Data, and Other Data. It collects data linked to your identity including Purchases, Location, User Content, Search History, Identifiers, Usage Data, Diagnostics, and Other Data.

How many SDKs does Wunderground have?

Wunderground integrates 18 third-party SDKs. 3 for advertising, 2 for analytics, 1 for payments, 6 for infrastructure, and 5 for other.

Does Wunderground use Google SDKs?

Yes. Wunderground includes 3 Google or Firebase SDKs: Google AdMob, Firebase Analytics, and Google App Measurement. These are used for ads, analytics, and cloud services.

Does Wunderground use App Tracking Transparency?

Yes. Wunderground requests the App Tracking Transparency permission, which means it asks for your consent to track your activity across other companies' apps and websites.

Does Wunderground access your location?

Yes. Wunderground requests location access. The developer states: "As our Privacy Policy describes, when you grant permission, we use your device’s location to deliver forecasts and weather alerts. We also may use and share this information with vendors for ads, and to provide and improve our Services.".

Does Wunderground run in the background?

Yes. Wunderground registers 2 background modes, which means it can perform certain tasks when you're not actively using it.

What are some alternatives to Wunderground?

Other weather apps include 13abc Weather , Drive Weather , 4WarnMe , AirVisual , Alpenglow , and Acme Weather . Each app takes a different approach to weather and varies in its data collection and SDK usage.

Weather · Privacy report

Weather Underground: Local Map

Free · ★3.9 · Weather Underground, LLC

Is Wunderground safe?

It collects a lot of your data, and shares it with trackers.

Our take. Wunderground carries 5 third-party trackers and its own label declares it links 8 categories of your data to you. It collects a lot itself, and shares a lot with outside companies.

Privacy footprint · vs 106 weatherModerate

Trackers from other companies5 · some

typical weather: 5

Data the app links to you8 types · some

typical weather: 1 · from its own privacy label

What it collects about you

Wunderground links 8 categories of your data to you.

From the developer's own App Store privacy label. These are the kinds of data Wunderground ties to your identity, and it also declares it shares data to track you across other apps.

PurchasesLocationUser ContentSearch HistoryIdentifiersUsage DataDiagnosticsOther Data

Who else is inside

It carries trackers from 2 companies.

Third-party SDKs found in the app, matched to the company that publishes each. Present in the code; we do not observe what they transmit.

🏢Other third partiesadvertising

A third-party SDK.

SDKs

🇺🇸GoogleAnalytics

Firebase, AdMob and Google analytics SDKs, built to record how you use the app and serve ads.

SDKs

How it compares

Where it sits among weather.

Every one of these apps we have scanned, on the two measures above: third-party trackers it carries (across) and data it links to you on its own label (up). Toward the top right is more invasive.

Each dot is one weather app. Wunderground sits to the right, carrying more third-party tracking than most.

Other signals

One more flag.

Each is a fact read straight from the app. The same checks run on every app we scan. Only the ones that apply here are shown.

It declares cross-app tracking

Its own App Store label says it tracks you across other companies apps and websites using your advertising identifier.

The evidence

What it's built from.

All 18 SDKs in the app, grouped by what they are for. 5 are third-party trackers.

3advertising

2analytics

13standard libraries

5 of the 18 are third-party trackers. The rest are the app's own code and standard open-source building blocks.

Show the full SDK list

Other third partiesadvertising

Amazon Publisher Services (DTB) · Google UMP (Consent) · Google App Measurement

GoogleAnalytics · USA

Google AdMob · Firebase Analytics

Standard libraries13 · on-device

The app's own code plus open-source interface, storage and networking libraries.

How we know this

Counterspy downloads the app from the App Store and statically analyzes its compiled binary. Embedded SDKs are matched against a signature database and resolved to the company that operates each. We also read the developer's App Store privacy label, which lists the data the app says it collects and links to you. We do not run the app or intercept its traffic, so we report capabilities present in the code and the developer's own disclosures, not proven transmission. We assess privacy and data collection, not malware, security flaws, or developer intent. Reports are automated and never edited for payment. Scan v6.21, 2026-04-01.

Third-party trackers are advertising, analytics and attribution SDKs detected by static signature matching. Presence shows a capability is compiled in, not that it ran or transmitted data.
"Data the app links to you" is the count of data categories the developer declares as Data Linked To You in its App Store privacy label. Labels are self-reported and not verified by Apple.
Comparison across the 106 weather in our corpus. Trackers: median 5. Data linked to you: median 1.