Idea: Electromagnetic-Radar AR companion for cheap SDR dongle to visualise Bluetooth/Wi-Fi/IR/RF signals around you in augmented reality (mobile / web).

1. Existing demand / social proof

   • HackerNews thread (#37203993) – top-level wish for exactly this device got several replies and up-votes.
   • Multiple posts on Hackaday, RTL-SDR blog, Reddit r/RTLSDR, r/AR_MR_XR asking how to “see” RF in AR.
   • ‘RadioFieldAR’, ‘RF Watcher’, ‘SeeSignal’, ‘Architecture of Radio’ show makers have already built DIY or commercial prototypes – confirms people try to solve it.

2. Current competitors

   • WiFi AR (Android Play Store) – 1M+ downloads, freemium – phone-only (no SDR, only Wi-Fi/Cell).
   • SeeSignal by BadVR – enterprise, needs Magic Leap/Quest headset, pricing undisclosed (B2B).
   • RadioFieldAR / RF Watcher – open-source hobby projects that work with RTL-SDR or tinySA; rough UX, Android only.
   • Several generic Wi-Fi analyser / BLE scanner apps (without AR). Gaps: No cross-platform polished consumer app that combines multi-band SDR data + true 3-D/AR localisation & protocol decoding.

3. Keyword research (Google data)

   • “wifi signal strength app” – 590 searches/m...