HAGU Radar

\ Even at festival venues where radio signals are dead, never get separated from your group members! /

"HAGU Radar" is a completely offline location-sharing and short message chat app that can detect nearby friends using only Bluetooth and Wi-Fi direct device-to-device communication (P2P), even in crowded environments where internet connections (4G/5G/Wi-Fi) are blocked or congested.

💡 Solve these common problems instantly!

• "There are too many people and my phone loses signal, so I can't send LINE messages"
• "I got separated from my friends when I went to the restroom or merchandise stand at a festival or fireworks display"
• "Even when told 'right side of the stage,' the crowd is so dense I can't find them"
• "Radio signals don't reach in underground shopping areas or remote camping sites in the mountains"

🚀 Main Features & Characteristics

1. No internet needed! Completely offline P2P communication
   - Devices communicate directly without going through servers or base stations. Coverage extends up to 200m–400m line-of-sight (between compatible devices).
2. Short message chat and preset message one-tap sending that works even without signal
   - Send all 62 types of preset messages with a single tap using ultra-lightweight transmission. Also supports offline auto-translation in 5 languages!
3. Exploration modes you can choose based on your situation
   - Circular Radar: Plots direction and straight-line distance in all 360 degrees on an outdoor map.
   - Sonar Detector: Uses signal strength (RSSI) to guide you with sound and vibration even indoors or underground where GPS doesn't reach.
   - AR Scouter: Point your camera at the crowd and your friend's name tag floats in the air in front of you!
4. No account registration needed · Peace of mind privacy
   - No phone number or email registration required whatsoever. Simply scan QR codes with each other and secure pairing is completed instantly.

🎪 Main Use Cases

Outdoor music festivals / Fireworks displays / Comic Market / Exhibitions / Camping & hiking / Underground shopping areas & large malls / International travel, etc.

Enjoy events to the fullest without stress, even in crowds or without signal!