# Live Spectrogram vs KQ MIDI Modulate

The clearest difference is update cadence: KQ MIDI Modulate at fortnightly against Live Spectrogram's every 31 months. KQ MIDI Modulate also leads on rating (5.0 vs 4.8). Live Spectrogram's advantage is price ($1.99 vs $5.99) and chart position (#184 vs unranked). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Live Spectrogram costs $1.99 and KQ MIDI Modulate $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

KQ MIDI Modulate holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews point the same way: 63% of Live Spectrogram's written reviews are positive against 67% of KQ MIDI Modulate's.

Live Spectrogram ships an update every 31 months, KQ MIDI Modulate fortnightly. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Live Spectrogram | KQ MIDI Modulate |
| --- | --- | --- |
| Price | **$1.99** | $5.99 |
| Rating | [4.8 (6 ratings)](https://appshunter.io/ios/app/live-spectrogram/id630831185/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/kq-midi-modulate/id6479354516/reviews)** |
| Number of ratings | **6** | 4 |
| Positive reviews | 62.5% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Best chart rank | **#184** | — |
| Size | 15 MB | 2 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Krueger Systems, Inc.](https://appshunter.io/developer/299293363) | [Ryouta Kira](https://appshunter.io/developer/862984358) |

## What reviewers say

### Live Spectrogram

[App page](https://appshunter.io/ios/app/live-spectrogram/id630831185)

**Currently charting:** #184 Top Paid · Utilities (US App Store)

Visualize sound frequencies in real-time with this tool. It displays audio intensity across time and frequency using color, helping you perfect singing, analyze animal calls, or locate household noises.

**Highlights:** Real-time audio visualization, Frequency analysis, Time-based spectrum display, Intensity shown by color, Singing voice perfection, Animal call analysis, Sound source identification

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

**In-app purchases:** none


### KQ MIDI Modulate

[App page](https://appshunter.io/ios/app/kq-midi-modulate/id6479354516)

This tool is designed for advanced MIDI users to manipulate and route MIDI signals. It offers extensive control over signal conversion, note triggering, and pad-based MIDI output, including AUv3 plugins. It does not produce sound on its own.

**Highlights:** MIDI signal conversion, 8x16 pad output, Free MIDI device routing, AUv3 plugins included, Note and control signal triggering, Customizable signal filtering

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

**In-app purchases:** none


## Frequently asked questions

### Is Live Spectrogram free?

Live Spectrogram costs $1.99, with no in-app purchases.

### Is KQ MIDI Modulate free?

KQ MIDI Modulate costs $5.99, with no in-app purchases.

### Which has better reviews, Live Spectrogram or KQ MIDI Modulate?

KQ MIDI Modulate is rated higher. Live Spectrogram averages 4.8 out of 5 from 6 ratings, while KQ MIDI Modulate averages 5.0 from 4 ratings.

### Do Live Spectrogram or KQ MIDI Modulate have ads?

Neither Live Spectrogram nor KQ MIDI Modulate shows ads.

### Which is updated more often, Live Spectrogram or KQ MIDI Modulate?

Live Spectrogram ships an update every 31 months, and KQ MIDI Modulate fortnightly. Most recently, Live Spectrogram was updated on September 18, 2026 and KQ MIDI Modulate on September 19, 2026.

---

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