Best Frequency Scanner Apps

Frequency: Sound Generator

by Lucija Jaksic

Free

Generate various sound waves, including sine, square, sawtooth, and triangle, with adjustable frequencies from 1Hz to 22000Hz. Visually observe animated sound waves and control volume. Useful for testing hearing, speakers, instruments, and even cleaning water from speakers.

5-0 Radio Pro Police Scanner

Fire, EMS, ATC, Train & CB/Ham

Free

Access over 50,000 live audio feeds from police, fire, EMS, air traffic, and more. Stay informed about local and global events with real-time updates, recordings, and live chat features.

Nearby Device Detector: Scan

Device Detector and Spy Finder

Free

Scan your current network for suspicious devices and identify hidden cameras or bugs using advanced AI and Wi-Fi scanning. Protect your privacy in hotels, public spaces, and more by ensuring your environment is safe.

EMF Radiation Detector Reader

Detect Magnetic Field Meter

Free

Detect electromagnetic fields (EMF) around you using your phone's sensors. Identify high-radiation zones in your home and workplace to better organize your environment and potentially improve well-being. Measure EMF emitted by various electronic devices and appliances.

Frequency Counter Hz Tuner

Guided Guitar & Ukulele

Free

This app transforms your iPhone into a powerful audio analyzer. It offers four distinct modes to measure sound frequencies, tune instruments, analyze motor speeds, and check mains stability. Advanced features include measurement history, comparison tools, and CSV export.

Tone Generator: Audio Sound Hz

Generate Audio Frequency Waves

Free

Create pure sine wave audio tones across a wide frequency range. This tool is ideal for tuning instruments, conducting hearing tests, performing science experiments, and testing audio equipment. Easily adjust frequencies and volume, with support for AirPlay devices.

Frequency Meter PRO

Professional tool

$2.99

Analyze audio frequencies in real-time using your device's microphone. Visualize audio levels, noise, and frequency ranges with a spectrum analyzer and oscilloscope. Export data for further analysis.

SpectralScan Audio Analyzer

Spectrum, RTA & Spectrogram dB

Free

Transform your device into a professional audio analysis tool. Visualize sound in real-time with a high-resolution spectrum, perform precise sine sweep measurements, and analyze frequency content over time. Save, compare, and export your audio data.