# Audio Analyzer vs Undulator

Audio Analyzer and Undulator both sit at 4.4 stars, but that hides the real split: 86% of Undulator's written reviews are positive against 61% of Audio Analyzer's. Undulator also leads on update cadence (every 2 months vs every 6 months) and price ($7.99 vs $9.99). Audio Analyzer's advantage is ratings volume (40 vs 12). On rating, ads, in-app purchases and monetization model there is nothing between them.

Audio Analyzer costs $9.99 and Undulator $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.4 for Audio Analyzer against 4.3 for Undulator. Both are backed by a comparable volume of ratings — 40 and 12 respectively. Written reviews are what separate them: 61% of Audio Analyzer's written reviews are positive against 86% of Undulator's.

Audio Analyzer ships an update every 6 months, Undulator every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Audio Analyzer | Undulator |
| --- | --- | --- |
| Price | $9.99 | **$7.99** |
| Rating | **[4.4 (40 ratings)](https://appshunter.io/ios/app/audio-analyzer/id681184981/reviews)** | [4.3 (12 ratings)](https://appshunter.io/ios/app/undulator/id1463822021/reviews) |
| Number of ratings | **40** | 12 |
| Positive reviews | 60.9% of reviews | **85.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 3 MB | 16 MB |
| Requires iOS | 12.4 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DEXUS Pawel Krzywdzinski](https://appshunter.io/developer/377798036) | [Eventide](https://appshunter.io/developer/546518026) |

## What reviewers say

### Audio Analyzer

[App page](https://appshunter.io/ios/app/audio-analyzer/id681184981)

This app provides real-time visual analysis of acoustic signals. It offers detailed insights into sound through spectrum, spectrogram, oscilloscope, and RTA displays, useful for musicians, engineers, and researchers.

**Highlights:** Real-time spectrum analyzer, Spectrogram analysis (color/B&W), Oscilloscope with full FFT window, Octave RTA analyzer (various bands), SPL Meter (dBFS), Recording trigger, Zoom and pan charts

**Features:** macOS Compatibility

**In-app purchases:** none


### Undulator

[App page](https://appshunter.io/ios/app/undulator/id1463822021)

This app offers a classic modulated tremolo effect inspired by a renowned hardware processor. It allows musicians to add rhythmic movement, ethereal feedback, and detuned echoes to various instruments and samples, creating evolving soundscapes and dynamic textures.

**Highlights:** Modulated tremolo effect, Ethereal feedback and detuned echoes, AM/FM modulation, Tempo sync, Real-time ribbon control, Multiple modulation waveforms

**In-app purchases:** none


## Frequently asked questions

### Is Audio Analyzer free?

Audio Analyzer costs $9.99, with no in-app purchases.

### Is Undulator free?

Undulator costs $7.99, with no in-app purchases.

### Which has better reviews, Audio Analyzer or Undulator?

Audio Analyzer is rated higher. Audio Analyzer averages 4.4 out of 5 from 40 ratings, while Undulator averages 4.3 from 12 ratings.

### Do Audio Analyzer or Undulator have ads?

Neither Audio Analyzer nor Undulator shows ads.

### Which is updated more often, Audio Analyzer or Undulator?

Audio Analyzer ships an update every 6 months, and Undulator every 2 months. Most recently, Audio Analyzer was updated on November 6, 2026 and Undulator on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*