Android · Free to Install · No Sign-Up Required
Scan your surroundings.
Stay private. Stay safe.
Radar discovers people around you, lets you chat securely, share media, and stay safe — even when the internet is gone. No phone number. No email address. Nothing that identifies you.
Truly Anonymous End-to-End Encrypted Works Offline Anonymous & Unverified Data Peer-to-Peer Mesh SOS & Emergency Features
Maps & Live Data
One map. Sky, sea, rail, road, and every hazard in between.
Most map apps show you a blue dot. Radar's map is a live composite fed by dedicated tracking integrations and an ever-growing global feeds engine — pulling from official agencies, aviation networks, maritime trackers, and meteorological services around the world, then rendering all of it as one continuously updating picture.
Live tracking layers
Purpose-built integrations that poll, cache, and tile real-world positional data, so it's ready the instant you open the map. The map uses the Google Maps SDK, and you can download Google Maps areas for offline use on your device.
Aircraft
Live positions
OpenSky Network
Marine vessels
Live positions
AISStream.io
Earthquakes
Real-time seismic events
USGS
Floods
Warnings & forecasts
UK Environment Agency — Flood Warnings UK Environment Agency — FGS Forecasts
Weather warnings
National severe weather alerts
UK Met Office — NSWWS
Webcams
Public live camera feeds
Live-Environment-Streams (LES) OpenStreetMap OpenWebcamDB Transport for London (TfL) Windy
Points of interest
Places, addresses & access points
Google Maps HERE Overpass (OpenStreetMap) WiGLE Wireless Access Points
Road traffic
Live congestion & incidents
Google Traffic HERE Traffic TomTom Traffic
Internet radio
Curated global stations
Radio-Browser.info
Global alerts & news feeds engine
Beyond the dedicated layers, Radar streams hundreds of feeds from official agencies and newsrooms worldwide, rendered as a scrollable, chat-style timeline right on the map — filterable by country and topic.
Seismic & earthquakes
AFADBGS BMKGCENC CSNEMSC GEOFON / GFZGeoscience Australia GNS / GeoNetIGN IGPIMD INGVIPMA JMAKMA NRCanPHIVOLCS USGS
Volcanoes
GNSPVMBG Smithsonian GVPUSGS Volcano Hazards VolcanoDiscovery
Wildfires
BC Wildfire ServiceCAL FIRE CFA (Victoria)EFFIS InciWebNASA FIRMS NIFCNSW RFS
Tropical cyclones & hurricanes
GDACSJMA JTWCNOAA NHC
Floods
BoM (Australia)FloodList GDACSUK Environment Agency
Severe weather & multi-hazard
DWD (Germany)Environment Canada MeteoAlarmNOAA NWS NOAA SPC
Tsunami
INCOISNOAA / NWS PTWC
Disaster coordination & humanitarian
ACLEDCopernicus EMS FEMAGDACS NASA EONETNDMA (India) NEMA (New Zealand)OCHA ReliefWebUNHCR WFP
Health & disease
CDCECDC ProMEDUKHSA WHO
Cybersecurity
BleepingComputerCISA Dark ReadingKrebs on Security NCSCSANS ISC Schneier on SecurityThe Hacker News The Register
Transport safety investigations
AAIB (air)Aviation Herald BEA (France)MAIB (marine) NTSB (US)RAIB (rail)
Infrastructure & environment
National HighwaysUK Power Networks US EPA
Live news (Telegram bridge)
Al JazeeraAP News BloombergCNN EuronewsEuropean Commission Sky NewsSpaceX
Every feed above arrives over the format its source publishes natively — CAPGeoJSONGeoRSSKMLRSSTelegram — and Radar normalises all of it into one live, map-anchored feed. New sources are added regularly, so this list keeps growing.
Communication
Chat, call, and share — anywhere
Everything you'd expect from a modern messenger, plus the ability to do it all completely offline over Bluetooth, WiFi-Aware, and local networks.
📡
Find & Contact People Nearby
See who's around you on a live radar display. Tap any person to view their profile and start a private conversation — no phone number swap needed.
💬
Integrated SMS Management
Your existing SMS threads live right alongside your Radar chats, in a single unified inbox. No more switching apps for text messages.
🔐
Secure Messaging
Direct messages are end-to-end encrypted by default (Radar warns you first if one can't be encrypted), and sealed sender protects it in transit — a network eavesdropper or middle man can't even obtain the sender's UUID.
📎
Send Photos, Video, Files, Contacts & Location
Share anything in a conversation — images, video clips, documents, contact cards, or a live pin drop — all transferred peer-to-peer, no cloud upload required.
📢
Broadcast Messaging
Send a message to everyone nearby at once. Perfect for coordinating a group at an event, issuing a warning, or just saying hello to the crowd.
👥
Group Chats
Create named group conversations with any combination of your nearby contacts and SMS contacts. Messages route via the best available transport for each member.
🏛️
Matrix Chat Rooms
Connect to the federated Matrix network and join public or private rooms. Bridges the gap between your local mesh and the wider decentralised internet.
🎥
Video & Audio Calling
One-tap encrypted video and audio calls directly to any Radar contact. No account, no call logging, no third-party servers involved.
🔊
Connect to Nearby Bluetooth Speakers
Discover and connect to Bluetooth speakers around you straight from the app — handy when you're at a venue or campsite and want to share audio without fuss.
Privacy & Security
Private by design — not by promise
Most "private" messengers still need your phone number, still collect metadata, and still run through centralised servers. Radar was designed from the ground up to make that impossible.
🚫
No Phone Number Required Sign up with nothing — just pick a nickname and go.
🚫
No Email Address Required There's no account to create and nothing to verify.
🕶️
Truly Anonymous No verified personal information is ever required. Anything you enter is optional and unvalidated.
📵
Anonymous, Unvalidated Data Our server only knows a random UUID, never who you are. Any profile details you add are optional, unverified and never sold. Optional Firebase usage statistics can be switched off.
🚫
No Profiling The free tier shows ads injected by Google AdMob (Premium removes them), and Radar never builds a profile about you.
🔐
End-to-End Encryption Messages are encrypted on-device and only readable by the recipient.
🪪
Sealed Sender Sealed sender is applied in transit only, so anyone intercepting traffic can't see the sender's UUID. The relay only handles sender and receiver UUIDs, never real identities.
🔗
Peer-to-Peer Messaging Bluetooth, WiFi-Aware, LAN, and internet — no centralised server required.
🕸️
Mesh Network Forwarding Messages hop through nearby devices to reach peers outside direct range.
🧅
TOR / Orbot Integration Route internet traffic through TOR for an additional layer of anonymity.
Emergency & Safety
Built for when things go wrong
Radar includes a dedicated set of survival and emergency tools that work even when your phone has no signal, no data, and low battery.
🆘
Morse Code SOS
Transmit a recognised international SOS signal using the camera flash and screen — readable by rescuers without any special equipment.
🔦
Flashlight
A fast-access, full-brightness torch that you can trigger from the emergency screen without unlocking the app or navigating menus.
📋
Prepper List
A curated survival checklist — food, water, first aid, shelter, and communications — available completely offline for when you need to prepare quickly.
📻
Internet Radio
Stream emergency broadcasts, news, and weather updates from internet radio stations when your mobile data is still available but everything else has gone quiet.
🚨
Personal Distress Alarm
Trigger a loud audio alarm directly from the emergency screen — useful for attracting attention when you need help and can't shout.
Dig deeper into Radar