BLE Radar is a free Android app that turns your phone into a field instrument. It reads seven invisible layers of the world around you, from Bluetooth and WiFi density to magnetic anomalies, air pressure, night-sky light and ambient noise, and converts that into non-monetary, real-world impact: trees planted and ocean cleanup funded through 1ClickImpact, never tokens, never points, never cash.
Send the Gmail address you use in Google Play. Sergiu receives it instantly and can add you as a tester. The Play link remains available either way.
Your phone carries a radio, a magnetometer, a barometer, a light sensor and a microphone. Every one of them is reading something real about the place you are standing in, and none of it is normally shown to you. BLE Radar reads all seven layers and puts them on a public map.
Counts nearby devices anonymously, deduplicated per area, to build a real coverage map. Never a device list, never an address.
The same anonymous-count treatment as Bluetooth, and an independent cross-check on how populated an area really is.
A signal-quality reading only, 0 to 4, never a tower ID. It feeds a public dead-zone map and deliberately earns you nothing, because it is not a discoverable signal the way Bluetooth and WiFi are.
Not raw field strength, which would just map the Earth. It stores the difference between what your phone measures and what the World Magnetic Model predicts for that exact spot, so what you see is the steel, the rail line and the substation, not the planet.
Sea-level normalised on the device, plus the tendency in hectopascals per hour, which is the number a barometer is actually read for. Pressure describes a moment rather than a place, so it expires instead of accumulating.
A deliberate instrument reading, not a passive one: the phone must be flat, face up, under open sky, after real astronomical darkness. It measures the artificial light people have put into a place. It will never print a Bortle class, because a phone sensor cannot see a genuinely dark sky.
Sound level only. No audio is recorded, ever, and none is transmitted. It reports the quietest floor a place never drops below, and it states openly that a phone microphone is not a calibrated sound meter.
Every layer is an additive toggle on the public explorer, and any one of them can expand into an interpolated field surface with real contour lines. No login needed. Open the explorer ›
Every reading is anonymous and aggregate. No device addresses, no cell tower IDs, no raw location ever leaves your phone. Full breakdown in the privacy policy.
Search a street, a city or a whole country and get a real report of what the network has actually sensed inside it, measured against everywhere else. Areas are shareable links.
A phone light sensor cannot see a truly dark sky, and a phone microphone is not a calibrated sound meter. The app says so, in those words, instead of printing a confident number it did not measure.
On-device motion detection pays walking and cycling the best rate. Driving earns less, on purpose, because a car passes more devices per minute than someone on foot.
A live glance on your watch: same progress, same celebration when a real unit funds. The node secret never leaves your phone.
Turn on your email and get an actual named certificate, with a real unit count and a QR code, each time your mining funds something. Off by default.
A live, full-screen map of the whole network's real coverage, click any hexagon for real per-area stats. No login needed.
When the impact your scanning funded is actually purchased, 1ClickImpact issues a certificate in your name, with the real unit count and a verification code. It arrives by email. It is not a badge in an app you would lose access to tomorrow, and it is not a number that can drop to zero.
Same crowdsourced-coverage model companies like OpenSignal built a business on. Aggregate only, per map hexagon, self-serve. Get a free API key and start querying in a minute.
Free, takes under a minute to start, works passively in the background.