Comparison

Audio / Spectrum Analyzer vs AxeModes

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

Head to head
About

Audio / Spectrum Analyzer

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.

Highlights
  • Simultaneous waveform and spectrum display
  • Configurable display layouts
  • Selectable FFT size and averaging
  • Frequency weighting options (Flat, dBA, dBC)
  • Octave band analysis
  • Audio signal and noise generation
  • Peak hold and pitch meter
Read full description

This RTA app supports simultaneous display of "Audio Waveform", as well as the FFT-based "Amplitude Spectrum" (frequency magnitude) and "Spectrogram" (frequency distribution over time), for audio signals input from a microphone. (FFT: Fast Fourier Transform, RTA: Real Time Analyzer) [Features] - Supports simultaneous display of Waveform / Spectrum / Spectrogram - Supports orientation both portrait and landscape - FFT size - Window function - Spectrum average - Spectrum Tilt - Frequency weighting (Flat, dBA, dBC) - The type of expressing the frequency of Spectrum / Spectrogram (Linear, Log) - Displays the peak level and its frequency of the spectrum - Peak Hold (displays the results of holding past peak values ​​of the spectrum) - Octave Analysis (displays the spectrum divided into octave bands) - Generates the audio signal (Sine, Triangle, Squire, Saw) - Generates the noise signal (white noise, pink noise) - Pitch meter display The Pro version offers Ad-Free Viewing and High-Resolution Analysis (FFT size: 16384, 32768, Spectrum Average: 4, 8). [Setting items] 1. Screen structure : Select the display screen configuration. View Num : 1, 2 View Type : - 1 screen : Wave (Waveform) / 1D (Spectrum) / 2D (Spectrogram) - 2 screens : W+1D / W+2D / 1D+2D Layout : Vertical / Horizon 2. Frequency Axis Scale Type : Selectable the type of expressing the X direction (frequency) of Spectrum / Spectrogram. - Linear: Distributed at equal intervals - Log: The intervals increase logarithmically 3-1. FFT size : 1024, 2048, 4096, 8192, 16384, 32768 (* 16384, 32768 is available in the Pro version.) 3-2. Window function : Hanning, Hamming, Blackman, No window 4. Spectrum Average Number of spectrum average for a display of spectrum. 1, 2, 4, 8 (init value: 1) (* 4 and 8 are available in the Pro version.) Higher value will make the spectrum less noisy and more smooth, at the cost of lower time resolution. 5. Spectrum Tilt : Compensates the visual slope of the spectrum around a 1 kHz pivot. -6.0 to +6.0 dB/oct in 0.5 dB/oct steps (0 means no tilt). 6. Frequency Weighting : Selectable frequency weighting. - Flat: No frequency weighting is applied. - dB(A): Frequency response that takes into account human hearing. - dB(C): Relatively flat response. 7. Peak Hold : Displays the results of holding the past maximum values ​​(peak values) of the spectrum. 8. Octave Analysis : Displays the results of classifying the spectrum into octave bands. Division method: - FFT: Spectral display - 1/24, 1/12, 1/6, 1/3, 1 octave: Display divided into octave bands Calc method: - Max: Displays the maximum spectrum value in each band - Average: Displays the average spectrum value in each band 9. Generates the audio signal : Set the audio signal to be generated. - There are 4 types of waveform. (Sine, Triangle, Squire, Saw) - It can set the value of the frequency in 20Hz - 20000Hz. 10. Generates the noise signal : Set the noise signal to be generated. - There are 2 types of noise. (White noise, pink noise) [Other] - Background color: Black, White - WaveForm: Line Color (Green, Yellow, Invert), Line Width (1.0 ~ 6.0 px) - Spectrum: Bar color (Green, Yellow, Color patterns) - Spectrogram: Colormap, Display range (-150 ~ -60 dB), Display time (4 ~ 60 sec), Apply Spectrum Tilt - Bluetooth connection policy selection (disabled, HFP, A2DP). - Scaling of Waveform / Spectrum display in the Y direction (magnification: 0.5 - 2.0). - Scaling of Spectrum / Spectrogram display in the X direction (magnification: 1.0 - 16.0).

About

AxeModes

This app helps guitarists learn various musical modes and scales from any root note. It features a dynamic fretboard, scale degree visualization, and audio playback for each note, along with chord accompaniment.

Highlights
  • Learn major, minor, and other scale modes
  • Dynamic fretboard display
  • Color-code and show/hide scale degrees
  • Hear individual note sounds
  • Play chord accompaniment
  • Context-sensitive help
Read full description

Learn all the associated Modes of the Major, Melodic Minor, Harmonic Minor, Harmonic Major, Double Harmonic Major, Hexatonic, Pentatonic, and Diminished Scales. Starting from any Root Note. (Hundreds and hundreds of combinations!) Dynamically generated Fretboard. Show between 2 and 22 Frets at a time. Color code any Scale Degree(s). Show or hide any Scale Degree(s). Click on any Note to hear what it sounds like. Play Chord accompaniment for any Scale/Mode/Root combination. Context sensitive help available on every screen.

Screenshots

Audio / Spectrum Analyzer4 screens
AxeModes3 screens

Verdict

The call

The clearest difference is price: Audio / Spectrum Analyzer at Free against AxeModes's $4.99. Audio / Spectrum Analyzer also leads on ratings volume (1K vs 2). AxeModes's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement 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

Audio / Spectrum Analyzer is free to download; AxeModes costs $4.99 up front. Audio / Spectrum Analyzer sells 1 one-off in-app purchase. AxeModes asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

AxeModes holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Audio / Spectrum Analyzer has 1K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Audio / Spectrum Analyzer ships an update every 2 weeks, AxeModes every 4 days. The most recent releases landed on September 25, 2026 and June 1, 2026 respectively.

Scorecard7 real differences · 3 level
Audio / Spectrum Analyzer versus AxeModes: the parameters behind the verdict, then further details
ParameterAudio / Spectrum AnalyzerAxeModes
PriceFree — better$4.99
Rating4.6 (1K ratings)5.0 (2 ratings) — better
Positive reviews78.6% of reviews—
Number of ratings1K — better2
Update frequencyEvery 2 weeksEvery 4 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.2 — better
Further details — not scored
Size5 MB10 MB
Age rating4+4+
DeveloperLoop-Sessions.LLC.Joseph Svantner

Customer experience

Audio / Spectrum Analyzer

All ratings1,048 ratings
Positive91.2%
Neutral3.8%
Negative5.0%
Written reviews103 reviews
Positive78.6%
Neutral2.9%
Negative18.4%

AxeModes

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Audio / Spectrum Analyzer

Reported bugs

3 issues
  • Stuck on latest measurement
  • White noise instead of expected functionality
  • Disconnects AirPods

Requested features

4 requests
  • Sampling rate adjustment
  • Wave shape tracking
  • Audio file analysis
  • Octave analysis

AxeModes

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Audio / Spectrum Analyzer

One-time1
  • Pro (Remove ads, High-Res analysis)$11.49
None

AxeModes

No in-app purchases

Questions

Is Audio / Spectrum Analyzer free?
Audio / Spectrum Analyzer is free to download, with in-app purchases available.
Is AxeModes free?
AxeModes costs $4.99, with no in-app purchases.
Which has better reviews, Audio / Spectrum Analyzer or AxeModes?
AxeModes is rated higher. Audio / Spectrum Analyzer averages 4.6 out of 5 from 1K ratings, while AxeModes averages 5.0 from 2 ratings.
Do Audio / Spectrum Analyzer or AxeModes have ads?
Audio / Spectrum Analyzer shows ads; AxeModes does not.
Which is updated more often, Audio / Spectrum Analyzer or AxeModes?
Audio / Spectrum Analyzer ships an update every 2 weeks, and AxeModes every 4 days. Most recently, Audio / Spectrum Analyzer was updated on September 25, 2026 and AxeModes on June 1, 2026.

Other comparisons