Wi-Fi
See nearby networks by channel and strength — live spectrum curves for 2.4 and 5 GHz, with security details and per-network signal history.
Curious Air
Explore the invisible signals around you.
Wi-Fi · Bluetooth · Cellular · GNSS · NFC · Sensors · Audio
Available free in open testing on Google Play.
01
Local-first
Readings stay on your phone. Nothing you scan is uploaded to Ulix — data leaves your device only when you export a file yourself.
02
Permission-aware
Curious Air requests access only when a feature needs it. Denying one permission does not disable the rest of the app.
03
No account, no ads
No sign-up, no profile, no feed, no cloud dashboard. Open the app and start scanning.
04
Optional one-time Pro upgrade
Live views are free. Pro adds timed logging and CSV export.
A dedicated view for each signal and sensor.
Each view includes the relevant units and a plain explanation of what the measurements can — and can’t — tell you.
Bluetooth
A radar of nearby devices ranked by relative signal strength. Decode advertisements, manufacturer data, and GATT services.
Cellular
Inspect cellular signals detected by your phone — signal strength, network type, and cell details, updated live as you move.
GNSS
Follow your GPS fix and explore the satellite sky — every satellite by constellation, elevation, azimuth, and signal strength.
Sensors
Heading, pitch and roll, acceleration, magnetic field, light, proximity, pressure, altitude, and a live audio spectrum — analyzed in the moment, never recorded.
NFC & Network
Tap NFC tags to read their contents, and discover the services announcing themselves on your local network over mDNS and SSDP.
Signal data, clearly presented.
Stable lists, clear units, live plots, and enough context to know what a number means.
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
Nearby devices, ranked and decoded.
The radar places Bluetooth devices by relative signal strength. Open one to decode its advertisements, manufacturer data, and GATT services — or switch consoles and inspect the cellular signals detected by your phone.
- Radar view plus a stable device list
- Advertisement and GATT decoding, free for everyone
- Distance estimates are clearly labelled
Built-in sensor tools.
Heading, pitch and roll, acceleration, magnetic field, light, proximity, pressure, and a live audio spectrum — using the sensors available on your phone, each with its own clear readout.
- Clean attitude and field readouts
- NFC tag reading and local service discovery
- Unsupported hardware is marked unavailable
Adapts to your phone’s hardware.
Phones ship with different radios and sensors. Curious Air detects the hardware available on your device and marks unsupported features as unavailable.
- Wi-Fi
- Bluetooth
- Cellular
- GPS
- GNSS
- NFC
- Magnetometer
- Accelerometer
- Light
- Barometer
- Microphone
Timed Multi-Signal Logging
Requires Curious Air Pro — a one-time unlock, not a subscription
Record Wi-Fi, Bluetooth, GNSS, and cellular readings together over time. Useful for debugging, research, and field analysis.
- Custom log durations and intervals
- Export ordinary CSV through Android’s document picker
- Live views are free; Pro adds timed logging and CSV export.
Pro is an optional one-time purchase inside the app, handled by Google Play.
Privacy and measurement limits, explained.
Estimates, relative measurements, and unsupported hardware are labelled where they appear.
Your readings stay on your phone.
Scan data is not sent to Ulix. Network activity is limited to local discovery probes on the network you’re already connected to and Google Play billing for the optional Pro upgrade.
Measurements include units and limitations.
Every reading includes its units and limitations. Distance estimates are labelled as estimates, audio levels are relative, and unsupported sensors are marked unavailable.
The air is full of information.
Explore nearby signals and sensors without an account or ads. Available now in open testing on Google Play.
GET IT ONGoogle Play