Best Frequensee Apps

101+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated September 2026

Finding the right frequensee apps can be overwhelming with so many options. We've analyzed 101+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Frequensee Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Audio / Spectrum AnalyzerAudio / Spectrum AnalyzerFree was $10.994.6★ (1K)YesYesSep 2026
2Audio Spectrum Analyzer ProAudio Spectrum Analyzer ProFree4.4★ (238)NoYesSep 2026
3FrequenSeeFrequenSeeFreeNoNoAug 2026
4Frequency: Sound GeneratorFrequency: Sound GeneratorFree4.7★ (340)YesNoSep 2026
5CacophoneCacophoneFree3.0★ (1)NoNoMay 2026
6Tonscape: Frequency GeneratorTonscape: Frequency GeneratorFreeNoYesJul 2026
7Frequency CalculatorFrequency CalculatorFreeNoNoMay 2026
8Frequense FitFrequense FitFreeNoJul 2026

Top Picks for Frequensee

Audio / Spectrum Analyzer#1

Audio / Spectrum Analyzer by Loop-Sessions.LLC.

RTA (FFT / Spectrogram)
Editor's Choice
🎵 Music
4.6😐(1K ratings)
FreeAdsIn-App Purchases
Audio / Spectrum Analyzer screenshot 1
Audio / Spectrum Analyzer screenshot 2
Audio / Spectrum Analyzer screenshot 3
Audio / Spectrum Analyzer screenshot 4
Audio / Spectrum Analyzer screenshot 5
Audio / Spectrum Analyzer screenshot 6

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.

What We Love

  • 👍 Customizable features
  • ⚙️ Accurate measurements
  • 🚀 Helpful for troubleshooting
  • 💡 Useful for ghost hunting

Room to Improve

  • 🐛 Crashes and freezes
  • 🔋 High battery and CPU usage
  • 🚫 Inappropriate ads/content
  • 🔒 Security concerns with payment info
Audio Spectrum Analyzer Pro#2

Audio Spectrum Analyzer Pro by Vlad Polyanskiy

Sound Frequency Analysis
Strong Contender
🎵 Music
4.4😐(238 ratings)
FreeIn-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

Analyze sound frequencies in real-time with this powerful tool. It offers detailed octave band analysis, FFT plots, and various measurement scales. Supports multiple microphones and noise analysis features for accurate audio insights.

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)
  • 🔧 Professional-grade audio measurement tool
  • 🎵 Identifies musical notes and frequencies
  • ⚡ Responsive and real-time analysis
  • 🛠️ Useful for sound engineering and audio setup
  • 📱 Works well on both iPhone and iPad

Room to Improve

  • 💸 Aggressive subscription/paywall nags
  • 🔄 Frequent iOS compatibility issues after updates
  • 📉 Features moved behind paywall in recent updates
  • 🐛 App crashes on startup (especially iOS 16/26)
  • ⚠️ Misleading free trial that requires payment
  • 🔐 Excessive permissions requests (photo access)
  • 🎚️ Limited microphone sensitivity controls
  • 📊 Graph obscured by notch/dynamic island
  • 🔊 Mutes device speaker volume when running
  • ⏱️ Slow performance on some devices

More Frequensee apps to explore

FAQ about Frequensee

What are the best frequensee apps for iPhone?
Audio / Spectrum Analyzer tops our frequensee apps ranking as of September 2026, with a 4.6-star average from 1K App Store ratings, and it's free to download.
Yes — 18 of the top frequensee apps we rank are free to download, including Audio / Spectrum Analyzer and Audio Spectrum Analyzer Pro.
Audio / Spectrum Analyzer shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 101+ frequensee apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app analyzes audio signals from your device's microphone and displays both the audio waveform and its amplitude spectrum in real-time. It uses FFT (Fast Fourier Transform) to calculate the spectrum, allowing for detailed frequency analysis.
Key features include simultaneous waveform and spectrum display, selectable FFT sizes, spectrum averaging for smoother results, various frequency weighting options (Flat, dBA, dBC), octave band analysis, and the ability to generate sine, triangle, square, and saw waveforms, as well as white and pink noise.

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