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Best Low Frequency Detector Apps

224+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated May 2026

Whether you're new to low frequency detector or looking for an upgrade, our curated collection of 224+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Low Frequency Detector

Decibel X:dB Sound Level Meter#1

Decibel X:dB Sound Level Meter by SkyPaw Co., Limited

Frequency Spectrum Analyzer
Editor's Choice
🔧 Utilities
4.7😐(156K ratings)
FreeIn-App Purchases
Decibel X:dB Sound Level Meter screenshot 1
Decibel X:dB Sound Level Meter screenshot 2
Decibel X:dB Sound Level Meter screenshot 3
Decibel X:dB Sound Level Meter screenshot 4
Decibel X:dB Sound Level Meter screenshot 5
Decibel X:dB Sound Level Meter screenshot 6

Transform your iOS device into a professional sound level meter with pre-calibrated accuracy and various frequency spectrum analysis tools. Measure sound pressure levels, export data to Health app, and enjoy features like FFT graphs, dosimeter readings, and InstaDecibel for social sharing. Experience the convenience of tracking noise levels with precision and ease.

What We Love

  • ⭐ Excellent app
  • 👍 Easy to use and understand
  • 🔍 Useful for various applications
  • 🎓 Helpful for hearing protection

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Misleading free trial
  • 📢 Intrusive ads
EMF Radiation Detector Reader#2

EMF Radiation Detector Reader by Rounding Squares BV

Detect EMF Radiation Meter
Strong Contender
🔧 Utilities
4.5😐(4.5K ratings)
FreeAdsIn-App Purchases
EMF Radiation Detector Reader screenshot 1
EMF Radiation Detector Reader screenshot 2
EMF Radiation Detector Reader screenshot 3

Detect EMF radiation levels around you with the EMF Radiation Detector Reader app. Easily identify EMF risk zones in your home, work areas, and around electronic devices. Download now to take control of your well-being and minimize exposure to harmful EMF radiation.

What We Love

  • 👍 Works well around microwave
  • 👍 Consistent results
  • 👍 Useful tool for detecting EMF
  • 👍 Legit EMF detection

Room to Improve

  • 🐛 Ads cover reading numbers
  • 🔍 Unclear how to interpret readings
  • ⚠️ Questionable accuracy, only detects magnets
Low Frequency Detector#3

Low Frequency Detector by TOON,LLC

Worth Considering
🔧 Utilities
2.8(6 ratings)
$9.99
Low Frequency Detector screenshot 1
Low Frequency Detector screenshot 2
Low Frequency Detector screenshot 3
Low Frequency Detector screenshot 4
Low Frequency Detector screenshot 5
Low Frequency Detector screenshot 6

This acoustic measurement tool detects low-frequency sounds that are hard to hear, allowing users to examine frequency components and sound levels. It features various analysis modes, including 1/3 octave band and FFT analysis, and provides a report function to help users understand the low-frequency noise present in their environment.

More Low Frequency Detector apps to explore

4
Decibel Meter Sound Detector
Decibel Meter Sound Detector
Decibel Meter Sound Detector
Track noise around you.
Free

Track environmental noise levels with an easy-to-use decibel meter app that provides detailed analysis through dB and AF readings. Share readings, utilize polling, and explore various features for sound monitoring. Contact info@ashiers.com for more information.

📊 Productivity
(48K)
5
Audio Spectrum Analyzer dB RTA
Audio Spectrum Analyzer dB RTA
Audio Spectrum Analyzer dB RTA
Sound frequency, decibel meter
Free

An advanced audio analysis app with features like real-time spectrum analysis, sound meter, and FFT plot for tuning home cinema, car stereo, and more. Experience precise frequency breakdowns and harmonic analysis with smooth HD graphics. Contact support for questions or feedback.

🎵 Music
(3K)
6
Decibel Meter Ultra
Decibel Meter Ultra
Decibel Meter Ultra
Noise Level Frequency Analyzer
Free

Measure the sound levels around you accurately with our Decibel Meter Ultra app. Stay informed and protect your hearing by monitoring noise levels in real-time. Download now for a quieter and safer environment.

🔧 Utilities
(272)
7
Nearby Device Detector: Scan
Nearby Device Detector: Scan
Nearby Device Detector: Scan
Device Detector and Spy Finder
Free

Detect suspicious devices in your network and ensure your privacy with this advanced Nearby Device Detector and Spy Finder. Utilize WIFI scanning and AI technology to identify hidden devices in various environments. Subscribe for enhanced features and protection. View Terms of Use: [Terms of Use] Learn more: [Privacy Policy]

🌟 Lifestyle
(1.8K)
8
Frequency Detector Analyzer
Frequency Detector Analyzer
Frequency Detector Analyzer
Spectrum Analyzer EMF Decibel
Free

This application transforms your device into a reliable tool for analyzing sound, providing real-time frequency detection and visualization to help musicians, sound engineers, and curious individuals understand and work with sound more effectively. With its precise measurements, data logging, and export capabilities, it offers a professional-level solution for sound analysis, available through a subscription-based model.

🔧 Utilities
(3)
9
VisiWave
VisiWave
VisiWave
See the frequencies around you
Free

This app lets you detect and visualize the frequencies of surrounding sounds in real-time, allowing you to see sound waves moving around you. Download the app to experience the magic of sound visualization and discover the frequencies that fill your environment.

🔧 Utilities
(8)
10
Decibel - sound level meter
Decibel - sound level meter
Decibel - sound level meter
Spectrum frequency analyzer
Free

Measure sound pressure and spectrum variations with the Decibel app. Compare recordings to a reference chart, save your history, and enjoy a user-friendly interface. Subscribe for access to premium features and unlimited recordings.

🔧 Utilities
(4.5K)
11
Decibel : dB sound level meter
Decibel : dB sound level meter
Decibel : dB sound level meter
Audio noise Spectrum Analyzer
Free

An advanced sound level meter app with a built-in Spectrum Analyzer for precise measurements. Monitor noise levels, save measurements, export data, and protect your hearing using various features. Download now for accurate sound monitoring and protection.

🔧 Utilities
(36K)
12
Audio Spectrum Analyzer Pro
Audio Spectrum Analyzer Pro
Audio Spectrum Analyzer Pro
Sound Frequency Analysis
Free

This app is a powerful real-time audio analysis tool with features like FFT plot, octave band real-time analyzer, and various measurement functions. It offers precise measurements using device-integrated microphones, AirPods support, and external microphone compatibility. Explore more features and functionalities by checking out the app!

🎵 Music
(236)
13
Frequency Analyzer
Frequency Analyzer
Frequency Analyzer
Audio Spectrum, Spectroid, dB
Free

Transform your device into a professional-grade audio analysis suite with industry-leading processing, precision calibration tools, and comprehensive visualization capabilities. Download now and unlock the full spectrum of acoustic measurement capabilities for applications such as acoustic measurement, audio engineering, environmental noise consulting, and more.

🔧 Utilities
(97)
14
Sonic | Water Eject
Sonic | Water Eject
Sonic | Water Eject
Water Eject Speaker Cleaner hz
Free

Clean your iPhone speakers with Sonic, a tone generator app that removes water and enhances sound quality. Adjust frequency easily by swiping, from 0 Hz to 25 kHz. Upgrade for limitless sessions, unique waveforms, presets, and an ad-free experience. Terms of Use: [Link].

🎵 Music
(19K)
15
EMF Detector-Radiation Reader
EMF Detector-Radiation Reader
EMF Detector-Radiation Reader
iemf,frequency detector
Free

Transform your iPhone into a powerful EMF detector with our app. Easily identify electromagnetic fields in your surroundings to ensure safety at home, work, or in public areas. Get real-time EMF level measurements and make informed decisions about your environment.

🔧 Utilities
(238)
16
Tone Generator: Audio Sound Hz
Tone Generator: Audio Sound Hz
Tone Generator: Audio Sound Hz
Generate Audio Frequency Waves
Free

Generate pure sine wave tones at various frequencies for purposes like tuning instruments, hearing tests, and audio equipment testing. Easily adjust frequencies, volume, and output options with user-friendly controls. Created by audio experts at TMSOFT. Explore more apps at http://www.tmsoft.com/.

🎵 Music
(128)
17
Metal Detector EMF
Metal Detector EMF
Metal Detector EMF
Find metals and magnetic field
Free

Discover hidden metals and magnetic fields with an app that utilizes your smartphone's magnetic sensor. Uncover buried treasures, find concealed metallic objects, and track readings on a graph. Unleash your inner treasure or ghost hunter with this Metal Detector EMF app!

🔧 Utilities
(2.2K)
18
Stud Finder: AI Metal Detector
Stud Finder: AI Metal Detector
Stud Finder: AI Metal Detector
Find Metal Studs Easily AI
Free

An app that detects studs using your phone's magnetometer by measuring magnetic fields near metal objects. Features include sensor calibration, sensitivity adjustment, and a hold button for easy readings.

🔧 Utilities
(1.1K)
19
#1 Hidden Camera Detector
#1 Hidden Camera Detector
#1 Hidden Camera Detector
Device & Spy Cam Finder
Free

Experience a cutting-edge productivity tool that streamlines project management, collaboration, and communication within your team. Enhance efficiency and organization with features such as task assignment, file sharing, and real-time messaging. Try it now for improved productivity and team coordination.

🔧 Utilities
(3.8K)
20
Smart Metal Detector
Smart Metal Detector
Smart Metal Detector
by NETIGEN KLUZOWICZ SPOLKA JAWNA
Free

This application detects the presence of metal nearby by measuring the magnetic field value using the mobile device's built-in magnetic sensor, showing the level in μT (microtesla). Try it out to find metal objects, electrical wires, or hidden devices, and upgrade to a pro version for more features!

🔧 Utilities
(257)

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