Best Frequensee Apps

81+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated June 2026

Every iPhone needs a few good Frequensee apps. We benchmark 81+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Frequensee

FrequenSee - Spectrum Analyzer#1

FrequenSee - Spectrum Analyzer by Daniel Bach

Visualizing Sound in Motion
Editor's Choice
🎵 Music
3.1(10 ratings)
$2.99
FrequenSee - Spectrum Analyzer screenshot 1
FrequenSee - Spectrum Analyzer screenshot 2
FrequenSee - Spectrum Analyzer screenshot 3

This application visualizes sound in motion, providing a highly responsive audio spectrum analyzer that displays 24,000 measurements per second, allowing users to discover and track sound sources in real-time. Experience sound like never before and make connections between sound sources and their frequency behavior with this powerful tool.

Audio Spectrum Analyzer Pro#2

Audio Spectrum Analyzer Pro by Vlad Polyanskiy

Sound Frequency Analysis
Strong Contender
🎵 Music
4.4😐(236 ratings)
FreeAdsIn-App Purchases
Audio Spectrum Analyzer Pro screenshot 1
Audio Spectrum Analyzer Pro screenshot 2
Audio Spectrum Analyzer Pro screenshot 3
Audio Spectrum Analyzer Pro screenshot 4
Audio Spectrum Analyzer Pro screenshot 5

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!

What We Love

  • 👍 Intuitive and easy-to-use interface
  • 💰 Completely free with no ads
  • 🎯 Accurate frequency and spectrum analysis
  • 📊 Multiple visualization modes (FFT, spectrograph, bar display)

Room to Improve

  • 💸 Aggressive subscription/paywall nags
  • 🔄 Frequent iOS compatibility issues after updates
  • 📉 Features moved behind paywall in recent updates
Decibel : dB sound level meter#3

Decibel : dB sound level meter by Vlad Polyanskiy

Audio noise Spectrum Analyzer
Worth Considering
🔧 Utilities
4.6😐(36K ratings)
FreeAdsIn-App Purchases
Decibel : dB sound level meter screenshot 1
Decibel : dB sound level meter screenshot 2
Decibel : dB sound level meter screenshot 3
Decibel : dB sound level meter screenshot 4
Decibel : dB sound level meter screenshot 5
Decibel : dB sound level meter screenshot 6

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.

What We Love

  • 👍 Useful for monitoring noise levels
  • 🔍 Accurate for a phone app
  • 🔧 Good for calibrating audio equipment
  • 💡 Helpful for hearing protection

Room to Improve

  • 💰 Aggressive upselling tactics
  • 🔒 Privacy concerns around data collection
  • 🕹️ Confusing free vs paid options

More Frequensee apps to explore

4
Audio / Spectrum Analyzer
Audio / Spectrum Analyzer
Audio / Spectrum Analyzer
RTA (FFT / Octave Analysis)
Free
$10.99 | 100% OFF

This app is a versatile Audio/Spectrum Analyzer that allows users to view and analyze audio waveforms and amplitude spectrums from microphone input. It offers customization options for display settings, FFT size, window functions, waveform generation, and noise signal generation. Additionally, it supports Bluetooth connection policies and offers an option to hide advertisements through an in-app purchase. For a more advanced multi-channel audio signal experience, users can try out the "Multi Wave Oscillator" linked within the app's settings.

🎵 Music
(129)
5
Decibel X:dB Sound Level Meter
Decibel X:dB Sound Level Meter
Decibel X:dB Sound Level Meter
Frequency Spectrum Analyzer
Free

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.

🔧 Utilities
(156K)
6
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
(2.6K)
7
High Frequency Tones
High Frequency Tones
High Frequency Tones
Generate any frequency
Free

Generate sound waves with High Frequency Tones to test your hearing limits with frequencies up to 20,000 Hz. Explore various uses like annoying friends discreetly, using it as a dog whistle, or challenging your hearing abilities with friends. Upgrade to Frequency Premium for ad-free experience and additional waveforms.

🔧 Utilities
(595)
8
Frequency Sound Generator App
Frequency Sound Generator App
Frequency Sound Generator App
High Pitch Sound Generator
Free

This app is a Frequency Sound Generator that can produce sound frequencies from 1Hz to 25,000Hz for various purposes such as annoying pets, training dogs, stopping dog barking, pranking friends, and using as a mosquito repellent. Adjust frequencies easily and get in touch via email for support.

🔧 Utilities
(4.8K)
9
Frequency Sound Wave Generator
Frequency Sound Wave Generator
Frequency Sound Wave Generator
Try frequency generator tools
Free

This sound wave generator app offers a range of tools for producing and testing different frequencies, from tone generation and musical tuning to sound effects and analysis. With its user-friendly interface and high-quality sound generation capabilities, you can experiment with sound, test your hearing, create music, and more - try it out today!

🔧 Utilities
(66)
10
High Frequency Sounds
High Frequency Sounds
High Frequency Sounds
by Leafgreen
Free

Listen to various high frequency sounds and test your hearing abilities! Explore how age affects your capacity to detect high pitched noises with these fast sound wave vibrations.

🎬 Entertainment
(33)
11
RTA Audio
RTA Audio
RTA Audio
by New Ball s.r.o.
Free

This application provides a real-time audio analyzer with recording capabilities and a visualizer module for exporting results, allowing users to analyze and process audio inputs using Fast Fourier Transform. With its various features and tools, users can record, visualize, and export audio data in a PDF document, making it easy to share or archive analysis results.

🎵 Music
(31)
12
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)
13
Sound Oscilloscope
Sound Oscilloscope
Sound Oscilloscope
Sound Wave and Spectrum Viewer
Free

This sound wave and spectrum viewer allows you to analyze and visualize the waveform and overtone structure of various sounds, from voices and musical instruments to environmental noises. With its sensitive algorithm, you can observe and understand the characteristics of different sounds in a range of 30 Hz to 4000 Hz.

🔧 Utilities
(24)
14
Decibel Meter - Sound Analyzer
Decibel Meter - Sound Analyzer
Decibel Meter - Sound Analyzer
Measure noise frequency level
Free

This application turns your device into a professional sound level meter, allowing you to measure decibels, analyze sound frequency, and detect harmful noises to protect your health and hearing. With various measurement types, data saving and export capabilities, and advanced charts, it serves as a faithful assistant for monitoring noise levels at work or home, and tracking ear health.

🔧 Utilities
(36)
15
FFTWave
FFTWave
FFTWave
by Eisaku Nozu
Free

This app visualizes sound waves and spectra in real-time using your device's microphone, allowing you to analyze frequency characteristics and detect peaks. With features like pinch zoom and peak hold, it helps with sound adjustments and howling analysis, giving you a powerful tool to fine-tune your audio.

🔧 Utilities
(15)
16
Decibel X PRO: dBA Noise Meter
Decibel X PRO: dBA Noise Meter
Decibel X PRO: dBA Noise Meter
Frequency Spectrum Analyzer
$69.99

Transform your iOS device into a professional sound level meter with our leading noise meter app. Measure sound pressure levels accurately and protect your hearing, whether you're an audio expert or simply curious about your surroundings. See noise levels on your Apple Watch, export data to the Health app, and enjoy features like frequency analysis and dosimeter readings.

🔧 Utilities
(6.9K)
17
Decibel Meter-measure db level
Decibel Meter-measure db level
Decibel Meter-measure db level
Frequency Spectrum Analyzer
Free

A professional decibel meter app for noise detection on your mobile device. Features a new military-grade algorithm, noise recording, classification system, and real-time ambient noise visualization. Subscribe for ad-free experience, sensitive tests, and free access to all toolkits.

🔧 Utilities
(904)
18
Decibel : dB Noise Level Meter
Decibel : dB Noise Level Meter
Decibel : dB Noise Level Meter
Audio Sound Frequency Analyzer
Free

Measure and understand sound like never before with our ultimate Decibel Meter app. Capture real-time sound levels, track changes with stunning graphics, enhance photos with sound data, and protect your hearing health with our dosimeter feature. Join our passionate sound community, explore different environments, and start your journey to a better auditory understanding today. Download now for an immersive sound experience.

🔧 Utilities
(250)
19
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)
20
Frequency Sound Generator Tone
Frequency Sound Generator Tone
Frequency Sound Generator Tone
Tone generation, sound tests
Free
$0.99 | 100% OFF

Generate pure sine wave tones at frequencies from 20hz to 22,000hz with a Frequency Sound Generator app. Perfect for sound tests, instrument tuning, and exploring various frequencies. Assess hearing range, relax with binaural beats, and more - all at your fingertips!

🎵 Music
(7)

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