Signal Radar · Offline SOS AI
Catches the signal you can't
About
This app automatically detects and utilizes brief signal reconnections to send SOS messages with your location. It also provides offline, on-device AI assistance for emergency first aid and identifies global emergency hotline numbers.
What's New in Signal Radar · Offline SOS AI
1.1.1
July 21, 2026
1.Added status display for Dynamic Island and lock screen states 2.Optimized app stability
Developer apps
FAQ
What is Signal Radar's primary function?
Signal Radar's main purpose is to automatically detect fleeting cellular signal reconnections and send an SOS message with your GPS coordinates to trusted contacts. It's designed for situations where signal is intermittent and you can't manually send a message.
Does Signal Radar require an internet connection for its AI features?
No, Signal Radar's AI features, powered by Google's on-device LLM, operate entirely offline. This means you can access first aid guidance, species identification, and emergency procedures even without an internet connection.
How does Signal Radar handle privacy?
Signal Radar is built with a privacy-first approach. It has no backend, no analytics, and no cloud storage. Your location, signal history, and any chat data remain exclusively on your device.
What kind of emergency situations can Signal Radar help with?
Signal Radar can assist with a wide range of emergencies, including snake bites, broken bones, burns, hypothermia, CPR, severe bleeding, lightning strikes, heat stroke, and getting lost. Its AI provides illustrated guidance for each scenario.
Can Signal Radar provide emergency contact numbers?
Yes, Signal Radar includes a directory of global emergency hotlines for over 100 countries, covering police, fire, ambulance, and coast guard. It can surface the correct number based on your location or a spoken emergency.
Is Signal Radar suitable for younger users?
Signal Radar has an age rating of 17+, indicating it is intended for mature audiences. This is likely due to the nature of the emergency scenarios it addresses.
How often is Signal Radar updated?
The latest version of Signal Radar is 1.1.0, and it was last updated on 2026-07-08. This suggests a relatively recent update cycle for the application.
What devices does Signal Radar support?
Signal Radar is available for iPhone and iPod devices. It is designed to run on these Apple mobile platforms.