Visualize sound waves in real-time by detecting and displaying their frequencies in Hertz. Experience an augmented reality view of the audio environment around you.



212+ iOS apps curated and reviewed
The best hz frequency detector apps on iPhone average 4.4★ across 212+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.



Visualize sound waves in real-time by detecting and displaying their frequencies in Hertz. Experience an augmented reality view of the audio environment around you.




Monitor your surroundings with this decibel meter app. It measures sound levels in real-time, providing clear visual analysis and advanced filtering options. Easily share your readings for documentation or further analysis.






This app transforms your device into a professional sound level meter, precisely measuring ambient noise pressure. It offers advanced features like frequency analysis, historical data management, and dosimeter functions, making it useful for various applications and entertainment.






This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.


Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.


This app offers science-inspired sound therapy to promote natural healing and restore balance to your mind, body, and brain. It utilizes specific frequencies to aid in sleep, reduce pain, and enhance mental clarity for a holistic wellness journey.


Test your device's audio output and microphone functionality. This app plays specific frequencies and measures decibel levels to help identify speaker issues or microphone obstructions. Upgrade for unlimited testing and an ad-free experience.


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.


This app provides real-time audio analysis and visualization for sound frequency and decibel levels. It's designed for precise audio measurement, suitable for both hobbyists and professionals tuning rooms or speakers.


Analyze sound frequencies and decibel levels with this advanced tool. Ideal for tuning audio systems, it offers real-time spectrum analysis and sound metering for various applications.


This app generates specific sound frequencies and vibrations designed for healing and well-being. Explore tones for pain relief, stress reduction, emotional balance, and spiritual connection. Enhance meditation and promote overall health with targeted sound therapy.


This application offers real-time radio frequency signal detection and analysis. It monitors signal strength, analyzes frequency bands, and identifies interference sources. The tool provides historical data and network optimization insights for a better wireless experience.


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.


Transform your music to healing frequencies like 432Hz and explore alternative tunings. This app offers professional audio conversion with support for various formats, batch processing, and a library to manage your converted files. Discover a more harmonious listening experience.


Generate various audio test tones, including sine, square, triangle, and sawtooth waves. Explore frequency and volume sweeps, noise generation, and custom preset creation. Advanced features like extended frequency ranges and multi-tone playback are available with an upgrade.


Generate sound waves from 1Hz to 40000Hz with various waveforms. Analyze audio frequencies, test hearing, and use for relaxation or speaker cleaning. Offers a sleep timer for peaceful rest.


Scan and analyze all devices connected to your local network. This essential tool helps protect your privacy by identifying everything on your network. Regular updates ensure an improved user experience.


Listen to radio stations worldwide tuned to 432Hz or 528Hz. Customize your listening experience with an equalizer, pitch shifting, and speed adjustment. Save your favorite and most recent stations for easy access.