NoiseRadar: Sound Finder

NoiseRadar is a simple iPhone utility that helps estimate the direction of the loudest sound around you and identify the general type of sound.

Use Scan 360 mode to find where sounds are coming from, or Listen mode to monitor nearby sound types in the foreground. NoiseRadar measures sound levels locally on your device, combines them with compass heading to estimate which direction had the strongest sound signal, and uses on-device sound classification to label likely sound types. Optional foreground threshold alerts and local share reports help users keep practical notes without recording or uploading audio.

NoiseRadar is designed for casual sound-direction estimates, troubleshooting, demonstrations, and general utility use. Results and sound labels are estimates and can be affected by background noise, echoes, overlapping sounds, microphone position, compass accuracy, phone movement, and how slowly the user rotates.

Privacy: sound levels, sound classification, compass heading, and recent event history are processed on device. The app does not create accounts, record audio files, upload microphone audio, or send scan data to a developer server. The free version displays Google Mobile Ads banner ads; users can remove banner ads forever with a non-consumable in-app purchase.