Comparison

Audio Frequency Analyzer vs Tone Generator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Audio Frequency Analyzer

This real-time audio analyzer measures and evaluates sound environments with 1/3 octave band frequency response and FFT analysis. It supports calibration for high accuracy and is suitable for various audio testing and tuning applications.

Highlights
  • Real-time frequency spectrum response measurement (1/3 octave, 30 bands)
  • FFT Analyzer
  • Observation frequency range: 20 - 23000 Hz
  • Calibration function for high accuracy
  • Supports built-in and external microphones
  • Snapshot and averaging functions
Read full description

"Audio Frequency Analyzer" is a powerful real-time audio analyzer (RTA) app for iPhone. With its simple operation, you can easily measure and evaluate your sound environment. This app measures the frequency response in 30 split band scale of 1/3 octave in real time. It can also display the FFT analysis results. It supports calibration for 1/3-octave bands. By adjusting the characteristics to match not only the built-in microphone but also your external microphone, it achieves high measurement accuracy. "Audio Frequency Analyzer" can be used for various applications, including sound room tuning, speaker settings, audio equipment testing, stage setup measurement, sound mixing environment evaluation and noise environment investigation. Features: - Frequency spectrum response measurement of 1/3 octave unit, 30 bands. (OCT) - FFT Analyzer (FFT) - Observation frequency range: 20 - 23000 Hz - Logarithmic amplitude display. - Touch-scroll function to adjust visible amplitude ranges. - Display the measured value of 1/3 oct bands at OCT mode. (dB@OCT) - Function to change the graph slope at FFT mode. (Slope): -3dB/oct (less than 1kHz), +3dB/oct (1kHz or higher) - Peak hold function. (Hold) - Average display function. (Avg): Time linear averaging. Fast-2.56sec, Slow-12.8 sec - Display response control. (Fast/Slow) - Reset of Measurement display position. (Scroll) - Snapshot of Measurement display. (Snap) - Calibration function in OCT mode. (Calibrate): 1/3 octave band offset and total offset setting. - Supports built-in microphone, headset microphone, and external digital audio connection. Note: The first time you access your microphone and photos after installing the app, the iOS system will ask you for permission to access them. If you have not enabled this setting, the app will not be able to access them due to iOS system privacy restrictions. Please enable the access permission in the iOS setting "Settings > Privacy & Security > Photos or Microphone". Please visit our iOS app support page for more information about this app.

About

Tone Generator

Features
Read full description

Tone Generator Tone Generator is a versatile audio tool that generates accurate test signals with fully customizable frequency, volume, and panning settings. It is designed for a wide range of applications, including acoustic calibration, audio equipment testing, and ear training. Supported Waveforms - Sine - Triangle - Sawtooth - Square Key Features - Customizable Frequency: Precision control across the audible range (e.g., 20Hz – 20kHz). - Volume Adjustment: Fine-tune the output level. - Panning Control: Adjust the balance between Left (L) and Right (R) channels. - Background Playback: Continues to run even when the app is in the background. - Intuitive UI: A simple, user-friendly interface for seamless operation. Common Use Cases - Speaker & Headphone Testing: Evaluate the performance and range of your hardware. - Hearing Sensitivity Checks: Verify your personal frequency response and hearing range. - Audio Equipment Calibration: Ensure your gear is tuned and balanced correctly. - Education & Training: A perfect tool for acoustic training and general audio education.

Screenshots

Audio Frequency Analyzer4 screens
Tone Generator4 screens

Verdict

The call

The clearest difference is price: Tone Generator at Free against Audio Frequency Analyzer's $9.99. Tone Generator also leads on update cadence (every 2 weeks vs every 8 months) and iOS requirement (17.6 vs 26.2). Audio Frequency Analyzer's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Tone Generator is free to download; Audio Frequency Analyzer costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Audio Frequency Analyzer ships an update every 8 months, Tone Generator every 2 weeks. The most recent releases landed on September 9, 2026 and September 11, 2026 respectively.

Scorecard4 real differences · 6 level
Audio Frequency Analyzer versus Tone Generator: the parameters behind the verdict, then further details
ParameterAudio Frequency AnalyzerTone Generator
Price$9.99Free — better
Rating3.7 (3 ratings) — better—
Positive reviews60.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 8 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhoneiPhone, iPad — better
Requires iOS26.217.6 — better
Further details — not scored
Size0 MB5 MB
Age rating4+4+
DeveloperTOON,LLCEiji Chiba

In-app purchases

None

Audio Frequency Analyzer

No in-app purchases

None

Tone Generator

No in-app purchases

Questions

Is Audio Frequency Analyzer free?
Audio Frequency Analyzer costs $9.99, with no in-app purchases.
Is Tone Generator free?
Tone Generator is free to download, with no in-app purchases.
Do Audio Frequency Analyzer or Tone Generator have ads?
Tone Generator shows ads; Audio Frequency Analyzer does not.
Which is updated more often, Audio Frequency Analyzer or Tone Generator?
Audio Frequency Analyzer ships an update every 8 months, and Tone Generator every 2 weeks. Most recently, Audio Frequency Analyzer was updated on September 9, 2026 and Tone Generator on September 11, 2026.

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