Privacy Policy — WiFi Check

Last updated: 1 July 2026 · Publisher: Nordic Node, Netherlands

This is the privacy policy for the WiFi Check Android application (nl.nordicnode.wificheck), hosted at https://nordicnode.nl/wificheck/privacypolicy.html.

1. What WiFi Check does

WiFi Check tells you which WiFi standards your Android device supports (WiFi 4 through WiFi 7), based exclusively on:

Android's own WifiManager.isWifiStandardSupported() API,
live WiFi connection events on your device, and
Android's WifiManager.is6GHzBandSupported() API.

The app makes no network calls of its own to determine these answers. There is no remote database, no model lookup, no analytics, no telemetry.

WiFi Check also offers an optional speed test. When you choose to run it, the app transfers throw-away data to and from a public speed-test service to measure your download speed, upload speed and latency. It uses Cloudflare's endpoint (speed.cloudflare.com) and, if that is unavailable, falls back to the open Measurement Lab (M-Lab) NDT network (measurementlab.net). Such an exchange necessarily reveals your IP address to the chosen service, as any internet request does. No information about you, your device or your network is attached to the request, and the measured results stay on your device. Note that M-Lab publishes the technical measurement data it collects (including client IP) as an open research dataset; see M-Lab's privacy policy at https://www.measurementlab.net/privacy/ and Cloudflare's at https://www.cloudflare.com/privacypolicy/. The speed test only runs when you tap it.

2. Data we collect on-device

WiFi Check stores a small set of data locally on your device, in Android's DataStore preferences file. Specifically:

For each WiFi standard (WiFi 4, 5, 6, 6E, 7), the timestamp at which that standard was first observed via a live WiFi connection on this device.
A few small app-preference values, such as the in-app review frequency caps, the optional speed-test gate, and your AdMob consent choice.

This on-device data is never transmitted off your device. We do not store, log, transmit, or otherwise process:

WiFi network names (SSIDs);
BSSIDs / MAC addresses;
your location, GPS data, or location-derived information;
personal information (name, email, phone number);
device identifiers other than what AdMob handles for advertising (see §4).

You can delete the on-device dataset by clearing the app's storage in Android Settings or by uninstalling the app.

3. Permissions

WiFi Check requests the following Android permissions:

ACCESS_WIFI_STATE, ACCESS_NETWORK_STATE — needed to read your current WiFi connection's link speed, frequency, signal strength, and standard. These are normal-level permissions and do not prompt at runtime.
INTERNET — used only for serving ads (§4) and, if you choose to run it, the optional speed test (§1). It is never used to send your WiFi data anywhere.
ACCESS_FINE_LOCATION — requested at runtime only when you explicitly tap "Show network name". On Android a WiFi network name (SSID) is treated as location-sensitive on every OS version, so this permission is the reliable way to read it. We use it solely to display the SSID to you on that screen; we do not derive, store, or transmit your geographic location, and the SSID never leaves your device.

If you decline the location permission, the rest of the app works fine; only the network name display is disabled.

4. Advertising and AdMob

WiFi Check is supported by ads served by Google AdMob. To comply with EU rules, on first launch in EU/EEA regions you will see a Google-provided consent form asking what data, if any, AdMob may use for ad personalisation. You can change this choice any time via the app's "Privacy options" menu item.

When you grant consent, AdMob may collect or use your Advertising ID and limited device data for ad delivery and frequency capping. AdMob's privacy practices are described at https://policies.google.com/technologies/ads.

When you decline, AdMob serves contextual (non-personalised) ads.

We do not use any analytics SDKs (no Firebase Analytics, no Crashlytics, no third-party trackers).

5. Data sharing

We do not share data with third parties beyond Google AdMob (see §4) and, only if you run the optional speed test, the speed-test service used for that measurement — Cloudflare or M-Lab (see §1). We do not sell data, ever.

6. Children

WiFi Check is rated for everyone but is not specifically directed at children under 13. We do not knowingly collect personal information from children.

7. Changes to this policy

If we change this policy, we will update the "Last updated" date at the top. Material changes that affect what data is processed will be communicated via an in-app notice on the next launch after the change.

8. Contact

For questions, write to nordicnode26@gmail.com.