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Connect to the Wi-Fi you want to check and run a scan from the Devices tab. NetRadar looks across that network and lists every device it can reach, with its name, IP, MAC address and vendor, plus the services it advertises (Bonjour / mDNS, SSDP / UPnP).

Tap any device to investigate it — ping, open ports, DNS, WHOIS and history are all in one place.

NetRadar names devices from what they announce on the network — their hostname, Bonjour services and the vendor behind their MAC address. Some devices announce nothing, use a private (randomized) MAC address, or sit on a separate / guest network, so they show up as Unknown or not at all.

You can rename any device yourself, and Guardian will alert you the next time a new or unknown device joins.

iOS requires the Local Network permission before any app can see or talk to other devices on your Wi-Fi. NetRadar needs it for its core jobs — device discovery and the security score. Without it, the app simply can't see your network. You can grant or revoke it any time under iOS Settings → NetRadar.

No. NetRadar does not install a VPN profile and never routes your traffic through any server. Every scan, ping and lookup runs directly from your iPhone to the target you choose, and the results stay on your device.

Your scans, results, device lists and Wi-Fi details stay on your iPhone and are never uploaded. There are no accounts, no ads and no tracking.

The one exception is optional anonymous usage: app steps such as “a scan finished” or “a tool was opened”, sent to the developer's own server under a random ID that is not linked to you. It never includes IP or MAC addresses, device or Wi-Fi names, or anything you type, and it is deleted after 180 days. It is on by default — turn it off any time in Guardian › Privacy › Share anonymous usage. Details are in the Privacy Policy.

Scanning networks and hosts you own or are authorized to test is fine. Port scanning, CVE checks, and service enumeration of networks you do not have permission to assess may be illegal where you live. NetRadar is a diagnostics and security tool — please use it responsibly. You are responsible for how you use it.

It's a live, at-a-glance rating of your network's posture, built from what NetRadar finds: risky open ports, weak or expired TLS, exposed services, and unknown devices. Each finding comes with a plain-English explanation of what's wrong and how to fix it. The score recalculates as your network changes.

The speed test exchanges data with a measurement endpoint to estimate your real download / upload speed and latency. Results depend on your current Wi-Fi signal, how busy the network is, and the device you're testing from — so run it a few times and from different spots for a fair picture.

Ping measures the round-trip time and loss to a single host over time (with min / avg / max, jitter, p95 / p99, and a VoIP MOS estimate). Traceroute maps every hop on the path to that host, with per-hop latency and reverse DNS — so you can see exactly where a slowdown or routing problem begins.

Apple blocks third-party apps from listing nearby Wi-Fi networks and their signal strength on stock iOS — that API needs a special carrier-grade entitlement Apple does not grant general apps. NetRadar works with the network you're connected to, which is where all the security-relevant work happens.

Most tools let you export their results as PNG, CSV, or PDF for tickets and records — look for the share / export action on a result screen. Exports are generated on-device and saved or shared through the standard iOS share sheet.

Email [email protected] with as much of the following as you can:

• What you were doing when the issue happened (which tool)
• What you expected vs. what actually happened
• Your iPhone model and iOS version
• The NetRadar version (Settings → About)
• A screenshot or screen recording, if visual

The more specific the report, the faster the fix.

Refunds for App Store purchases are handled by Apple, not by the developer. To request one:

1. Go to reportaproblem.apple.com and sign in with your Apple Account.
2. Find NetRadar in your purchase history.
3. Tap "Report a Problem" and choose "Request a refund".

Apple decides the outcome. If you have feedback about why you wanted a refund, an email is always welcome — it directly shapes the next version.

• Clear in-app data — clear scan history and device lists from within NetRadar's settings.
• Uninstall NetRadar — long-press the app icon and tap "Delete App". This permanently removes the app's local database (results, history, settings).
• Anonymous usage — turn off Share anonymous usage in Guardian › Privacy. This stops sending and deletes the app's random ID; anonymous steps already sent are deleted automatically after 180 days.