# iScrudenizer vs Audio / Spectrum Analyzer

The clearest difference is review sentiment: Audio / Spectrum Analyzer at 79% against iScrudenizer's 0%. Audio / Spectrum Analyzer also leads on rating (4.6 vs 1.6) and update cadence (every 2 weeks vs every 70 months). iScrudenizer's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Audio / Spectrum Analyzer sells 1 one-off in-app purchase. iScrudenizer asks for nothing beyond the download.

Audio / Spectrum Analyzer holds the better App Store score, 4.6 against 1.6. That said, the two scores are not equally well evidenced: Audio / Spectrum Analyzer has 1.1K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 0% of iScrudenizer's written reviews are positive against 79% of Audio / Spectrum Analyzer's.

iScrudenizer ships an update every 70 months, Audio / Spectrum Analyzer every 2 weeks. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | iScrudenizer | Audio / Spectrum Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (5 ratings)](https://appshunter.io/ios/app/iscrudenizer/id365973886/reviews) | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574/reviews)** |
| Number of ratings | 5 | **1.1K** |
| Positive reviews | 0.0% of reviews | **78.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 70 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Remmy Demmy Productions](https://appshunter.io/developer/365973889) | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) |

## What reviewers say

### iScrudenizer

[App page](https://appshunter.io/ios/app/iscrudenizer/id365973886)

This client application connects to a custom MIDI sequencing server for kinetic art installations. It allows users to control playback of pre-programmed compositions, including play, pause, and stop functions. The app requires a specific server setup from Remmy Demmy Productions.

**Highlights:** Connects to custom MIDI sequencing server, Controls playback of compositions, Play, pause, and stop functions, Requires specific server setup, Client for kinetic art installations

**Features:** macOS Compatibility

**In-app purchases:** none


### Audio / Spectrum Analyzer

[App page](https://appshunter.io/ios/app/audio-spectrum-analyzer/id1508848574)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Remove ads, High-Res analysis) | $11.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🔋 High battery and CPU usage
- 🚫 Inappropriate ads/content
- 🔒 Security concerns with payment info

**Reported bugs**

- Stuck on latest measurement
- White noise instead of expected functionality
- Disconnects AirPods

**Requested features**

- Sampling rate adjustment
- Wave shape tracking
- Audio file analysis
- Octave analysis


## Frequently asked questions

### Is iScrudenizer free?

iScrudenizer is free to download, with no in-app purchases.

### Is Audio / Spectrum Analyzer free?

Audio / Spectrum Analyzer is free to download, with in-app purchases available.

### Which has better reviews, iScrudenizer or Audio / Spectrum Analyzer?

Audio / Spectrum Analyzer is rated higher. iScrudenizer averages 1.6 out of 5 from 5 ratings, while Audio / Spectrum Analyzer averages 4.6 from 1.1K ratings.

### Do iScrudenizer or Audio / Spectrum Analyzer have ads?

Audio / Spectrum Analyzer shows ads; iScrudenizer does not.

### Which is updated more often, iScrudenizer or Audio / Spectrum Analyzer?

iScrudenizer ships an update every 70 months, and Audio / Spectrum Analyzer every 2 weeks. Most recently, iScrudenizer was updated on October 13, 2026 and Audio / Spectrum Analyzer on October 25, 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.*