# Audio File Analyzer vs KeyPad MIDI Controller

The clearest difference is in-app purchases: KeyPad MIDI Controller at none against Audio File Analyzer's 1. KeyPad MIDI Controller also leads on ads (none vs shown) and rating (4.8 vs 4.5). On price and device support there is nothing between them.

Both are free to download. Audio File Analyzer sells 1 one-off in-app purchase. KeyPad MIDI Controller asks for nothing beyond the download.

KeyPad MIDI Controller holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: KeyPad MIDI Controller has 18 ratings behind it against 2, so its average is the more settled of the two.

Audio File Analyzer ships an update every 10 days, KeyPad MIDI Controller every 4 days. Both last shipped on November 13, 2026.

## The numbers

| Metric | Audio File Analyzer | KeyPad MIDI Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/audio-file-analyzer/id6757920520/reviews) | **[4.8 (18 ratings)](https://appshunter.io/ios/app/keypad-midi-controller/id6758680165/reviews)** |
| Number of ratings | 2 | **18** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 14 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366) | [DiscoDSP LLC](https://appshunter.io/developer/1465262828) |

## What reviewers say

### Audio File Analyzer

[App page](https://appshunter.io/ios/app/audio-file-analyzer/id6757920520)

Analyze audio files by viewing their waveform and real-time amplitude spectrum. Explore frequency components, transcribe speech, and customize display settings. A Pro version offers ad-free viewing and higher resolution analysis.

**Highlights:** Simultaneous waveform and spectrum display, Real-time frequency analysis, Speech transcription, Channel switching (Mix/L/R), Spectrum zooming, Pitch meter display

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Remove ads, High-Res analysis) | $10.99 | one-time |


### KeyPad MIDI Controller

[App page](https://appshunter.io/ios/app/keypad-midi-controller/id6758680165)

Transform your device into a professional MIDI controller with touch-optimized piano keys, drum pads, and performance controls. It supports SFZ, SF2, WAV, and M4A samples, and can control iOS apps, hardware synths, and Mac software wirelessly or wired.

**Highlights:** Touch-optimized piano keyboard, 9-pad drum grid, XY performance pad, Built-in sound engine (SF2, SFZ, WAV, M4A), AUv3 plugin support, Network MIDI for Mac control, Aftertouch and MPE expression

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Audio File Analyzer free?

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

### Is KeyPad MIDI Controller free?

KeyPad MIDI Controller is free to download, with no in-app purchases.

### Which has better reviews, Audio File Analyzer or KeyPad MIDI Controller?

KeyPad MIDI Controller is rated higher. Audio File Analyzer averages 4.5 out of 5 from 2 ratings, while KeyPad MIDI Controller averages 4.8 from 18 ratings.

### Do Audio File Analyzer or KeyPad MIDI Controller have ads?

Audio File Analyzer shows ads; KeyPad MIDI Controller does not.

### Which is updated more often, Audio File Analyzer or KeyPad MIDI Controller?

Audio File Analyzer ships an update every 10 days, and KeyPad MIDI Controller every 4 days. Most recently, Audio File Analyzer was updated on November 13, 2026 and KeyPad MIDI Controller on November 13, 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.*