Readings stay on your phone.
Nothing you scan is uploaded to Ulix. Data leaves your device only when you export a file yourself.
Curious Air
Now testing on Google Play
See what’s broadcasting around you.
Your phone already hears more than it shows you — Wi-Fi, Bluetooth, satellites, magnetic fields, even the hum of AC power. Curious Air turns it into a set of instruments for looking. No account, and your readings stay on your device.
Every instrument asks first.
Grant only the radio and sensor access you want. Deny a permission and the rest of the app keeps working.
Open it and start looking.
No sign-up, no profile, no ads, no cloud dashboard. Just the instruments.
Everything live is free.
A one-time Pro unlock adds timed logging and CSV export. No subscription.
The instruments
One console per signal.
Curious Air doesn’t blend everything into a single mysterious score. Each radio and sensor gets its own screen, its own units, and a plain note about what it can — and can’t — tell you.
01 · RadioLive
Networks nearby
Watch Wi-Fi channels, Bluetooth broadcasts, and cellular cells in real time, and discover the services announcing themselves on your local network.
- Wi-Fi
- BLE
- Cellular
- mDNS · SSDP
- Trackers
02 · PositionLive
Sky and position
Follow your GPS fix and explore the GNSS sky — every satellite your phone can hear, by constellation, elevation, azimuth, and signal strength.
- GPS
- GNSS sky map
- Altitude
- Bearing
03 · EnvironmentLive
Fields and motion
Read the magnetic field, motion, light, proximity, pressure, and a live audio spectrum — every sensor your phone actually has.
- Magnetic
- Motion
- Light
- Barometer
- Audio
04 · LabsExperimental
Inferred signals
Try the experiments: the 60 Hz hum of AC power read from the magnetometer, camera-based indicators, and tracker-pattern matching. Labelled experimental, because they are.
- Field sniffer
- Camera labs
- Tracker patterns
Field notes
Instruments you can actually read.
The design borrows from field equipment: stable lists, clear units, live plots, and enough context to know what a number means.
Wi-Fi spectrum
The whole band, at a glance.
Watch 2.4 and 5 GHz as live spectrum curves. Tap a peak for its channel, width, security, and signal history — or hold the results when you want the list to sit still.
- Spectrum view with per-network signal history
- Stable scanning — rows don’t jump while you read
- Everything on-device, no account required
Bluetooth radar · Cellular
Nearby devices, ranked and decoded.
The radar places BLE devices by relative signal strength. Open one to decode its advertisements, manufacturer data, and GATT services — or switch consoles and inspect the cellular cells your phone can hear.
- Radar view plus a stable device list
- Advertisement and GATT decoding, free for everyone
- Distance is an estimate — the app says so on screen
Sensors & environment
A toolbox of small instruments.
Heading, pitch and roll, acceleration, magnetic field, light, proximity, pressure, and a live audio spectrum — analyzed in the moment, never recorded.
- Clean attitude and field readouts
- NFC tag reading and local service discovery
- Missing hardware is shown as missing, not faked
Capability check
Built for the phone you actually have.
Phones ship with different radios and sensors. Curious Air checks yours and shows the honest list — anything your device can’t do is marked unavailable, instead of quietly showing zeros.
- Wi-Fi
- Bluetooth
- Cellular
- GPS
- GNSS
- NFC
- Magnetometer
- Accelerometer
- Light
- Barometer
- Microphone
- Camera labs
Curious Air Pro
Explore free. Pay once for the record.
Every live console is free — no trial timers, no locked basics. Pro exists for one job: keeping records you can take elsewhere.
One-time purchase · No subscription
Timed logs, exported as plain CSV.
Choose an interval and a duration, and Curious Air logs Wi-Fi, Bluetooth, GNSS, or cellular readings while you work. Files save through Android’s own document picker and open in any spreadsheet tool.
Wi-Fi logsBluetooth logsGNSS logsCellular logsOne Google Play purchase
Honest limits
A curious tool should be an honest one.
Signal strength moves. Hardware varies. Experiments can be wrong. Curious Air says so in the interface, not in fine print.
Privacy
Your readings stay on your phone.
Nothing you scan is sent to Ulix. The only network traffic the app creates: local discovery probes on the network you’re already connected to, and Google Play handling the optional Pro purchase. That’s the whole list.
Labs
Experimental means experimental.
Camera indicators, inferred signals, and tracker-pattern matches are clues, not proof. They can miss real devices or flag harmless ones — never rely on them for safety-critical decisions.
Now testing on Google Play
The air is full of information.
Curious Air is a local-first, no-account way to look. Join the test and see what your phone can hear.
Join the Google Play test