# Music Spectrograph vs Loop Slower

The clearest difference is price: Loop Slower at $0.99 against Music Spectrograph's $9.99. Music Spectrograph's advantage is update cadence (every 6 weeks vs every 12 months) and iOS requirement (12.4 vs 17.1). On ads, in-app purchases and device support there is nothing between them.

Music Spectrograph costs $9.99 and Loop Slower $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Music Spectrograph ships an update every 6 weeks, Loop Slower every 12 months. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Music Spectrograph | Loop Slower |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| Rating | **[2.5 (4 ratings)](https://appshunter.io/ios/app/music-spectrograph/id432044946/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 12 months |
| Monetization | Paid | — |
| Size | 1 MB | 5 MB |
| Requires iOS | **12.4** | 17.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [HotPaw Productions](https://appshunter.io/developer/285074853) | [Algirdas Gridziuska](https://appshunter.io/developer/1054530337) |

## What reviewers say

### Music Spectrograph

[App page](https://appshunter.io/ios/app/music-spectrograph/id432044946)

Visually reverse engineer sound and music in real-time with a live MIDI piano roll displaying pitch and frequency. Slow down or stop audio to analyze musical patterns, aiding in music transcription and learning.

**Highlights:** Real-time MIDI piano roll, Pitch and frequency visualization, Slow down and stop audio, Music transcription aid, Adjustable playback speed, Color-coded pitch graph

**Features:** Vision Pro support

**In-app purchases:** none


### Loop Slower

[App page](https://appshunter.io/ios/app/loop-slower/id6680190953)

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

**In-app purchases:** none


## Frequently asked questions

### Is Music Spectrograph free?

Music Spectrograph costs $9.99, with no in-app purchases.

### Is Loop Slower free?

Loop Slower costs $0.99, with no in-app purchases.

### Do Music Spectrograph or Loop Slower have ads?

Neither Music Spectrograph nor Loop Slower shows ads.

### Which is updated more often, Music Spectrograph or Loop Slower?

Music Spectrograph ships an update every 6 weeks, and Loop Slower every 12 months. Most recently, Music Spectrograph was updated on November 1, 2026 and Loop Slower on November 8, 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.*