SigScan: Signal Radar
See the signals around you
About
Visualize invisible signals around you with a radar and augmented reality view. Identify Bluetooth devices, NFC tags, WiFi networks, and HomeKit accessories. On-device intelligence provides detailed information without uploading data.
What's New in SigScan
1.5.1
October 20, 2026
What's New in SigScan 1.5.1 Radar: every nearby Bluetooth device around you by distance, on a compass that turns with your iPhone. Label it N E S W, in degrees, or both. Trackers stand out in red. Find directions: hold your phone out and turn once. SigScan works out which way each device is from how its signal rises and falls as you turn, and shows how sure it is. Locate a device in AR to pin its direction precisely. Hold a device on the radar or in the list to see its name, its distance and which way to turn. Devices with no known direction sit on their own line by distance, so nothing points somewhere it was never measured. Zoom with a pinch, double-tap to zoom in, or tap with two fingers to zoom out, from 1 ft to 160 ft. Feet or metres follow your region. 3D view: tilt the radar like Maps. Calibrate distance: measure a device once at 1 m and its distance comes from its real signal from then on. More accurate distances, especially for watches and other wearables. Steadier signal: readings are smoothed, so bars, dots and distances no longer jump but still follow real movement. The radar stays in view while you scroll the device list. Simpler navigation: Radar, AR, Intelligence and Log in the tab bar, with everything else under More. Wi-Fi and cellular details share one Connection screen. Better with large text sizes, VoiceOver and Reduce Motion. Ask AI no longer sends your location with your question. Also new since 1.3: Home screen widget: how many devices are nearby, how many are flagged, and what kinds they are, from your last scan. Share any device through Messages, AirDrop or Mail. Customize your tabs and choose Light, Dark or System appearance. Better device categories: speakers, TVs, cameras and appliances are recognised. Runs on Apple silicon Macs.
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FAQ
What devices can SigScan identify?
SigScan can identify a wide range of devices including Bluetooth devices (phones, computers, wearables, audio, trackers, TVs, cameras, smart home gear), NFC tags, WiFi networks, and HomeKit accessories. It distinguishes between chip makers and brands, and can even identify specific product models from manufacturers like SwitchBot and Xiaomi.
Does SigScan work offline?
Yes, all identification and analysis performed by SigScan happens on your iPhone. No scan data is uploaded or analyzed externally, ensuring your privacy and allowing for offline functionality.
How does SigScan use augmented reality?
SigScan uses augmented reality to visually represent nearby Bluetooth devices as floating bubbles in your real-world environment. You can point your phone around a room, and devices will appear anchored in space, with their visibility affected by walls or their off-screen location indicated by compass arrows.
Can SigScan find hidden trackers?
Yes, SigScan is designed to flag known tracker models and hardware from vendors listed on the FCC Covered List or restricted under Section 889. This includes identifying their subsidiaries, helping you detect potential unwanted tracking devices.
What kind of information does SigScan provide about devices?
For Bluetooth devices, SigScan provides manufacturer, product name, signal strength, and estimated distance. It also offers confidence scores and the exact evidence used for identification, along with device classes like phones, computers, and smart home gear.
How often is SigScan updated?
The latest version of SigScan is 1.5.1, which was last updated on October 20, 2026. While specific update frequency isn't detailed, this indicates active development and maintenance.
Is SigScan available on Android?
Based on the provided data, SigScan is currently supported on iPhones only. The 'supportedDevices' field explicitly lists 'iphone'.
What is the user sentiment for SigScan?
SigScan has received a rating of 5.0 stars from 1 rating, indicating overwhelmingly positive user sentiment based on available data. This suggests users find the app highly effective and valuable.
