# ShockWave vs Music Passages

The clearest difference is price: Music Passages at Free against ShockWave's $7.99. Music Passages also leads on rating (5.0 vs 4.6). ShockWave's advantage is update cadence (every 2 months vs every 13 months) and ratings volume (188 vs 2). On ads, in-app purchases and device support there is nothing between them.

Music Passages is free to download; ShockWave costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Music Passages holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ShockWave has 188 ratings behind it against 2, so its average is the more settled of the two.

ShockWave ships an update every 2 months, Music Passages every 13 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ShockWave | Music Passages |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | [4.6 (188 ratings)](https://appshunter.io/ios/app/shockwave-synth-module/id1449844670/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/music-passages/id6504737185/reviews)** |
| Number of ratings | **188** | 2 |
| Positive reviews | 54.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 13 months |
| Monetization | Paid | **Free** |
| Size | 42 MB | 6 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Blue Mango Software](https://appshunter.io/developer/1729682100) |

## What reviewers say

### ShockWave

[App page](https://appshunter.io/ios/app/shockwave-synth-module/id1449844670)

This app is a monophonic synthesizer for iOS and AUv3 plugins, utilizing Phase Distortion synthesis. It offers dual PD oscillators, sequencers, LFOs, and envelopes for complex sound design. Almost any control can be modulated by multiple sources, with real-time visual feedback.

**Highlights:** Phase Distortion Synthesis, Dual PD Oscillators, Dual 8-step Sequencers, Dual ASR Envelopes, Tempo-syncable LFOs, Extensive Modulation Matrix, MIDI and MPE Support

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ✨ Unique and amazing sounds
- 🔊 Heavy and brutal tones
- 💡 Innovative phase distortion synthesis
- 🎨 Beautiful and deep sound sculpting
- 🎹 Great for bass sounds

**What reviewers complain about**

- 🐛 Frequent crashes and glitches
- ❌ Not working in AUM/AUv3
- 🔇 No sound output in certain apps
- ❓ Difficult to use without a manual
- 📉 Laggy UI and slow patch loading

**Reported bugs**

- "Bad Signal" errors in AUM, stops sound generation.
- Intermittent "bad signal" prompt in AUM, requires reloading.
- Sounds awful, very distorted with glitchy UI.
- App crashes frequently.
- No sound coming out of AUv3 in GarageBand.

**Requested features**

- Provide a proper manual detailing all parameters and sections with examples.
- Implement a key trigger option for the sequencer to allow MIDI controller playback.
- Add a poly mode.
- Improve documentation and tutorials.
- Standardize knob appearance and response.


### Music Passages

[App page](https://appshunter.io/ios/app/music-passages/id6504737185)

Master essential music skills with interactive modules for rhythm, note-reading, and fingering techniques. Suitable for beginners and advanced students, it offers graded patterns, quizzes, and instrument-specific lessons to improve your musical abilities.

**Highlights:** Rhythm learning with graded patterns, Interactive note-reading quizzes, Instrument-specific fingering techniques, Progress tracking, Multiple difficulty levels, Customized exercises

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

**In-app purchases:** none


## Frequently asked questions

### Is ShockWave free?

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

### Is Music Passages free?

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

### Which has better reviews, ShockWave or Music Passages?

Music Passages is rated higher. ShockWave averages 4.6 out of 5 from 188 ratings, while Music Passages averages 5.0 from 2 ratings.

### Do ShockWave or Music Passages have ads?

Neither ShockWave nor Music Passages shows ads.

### Which is updated more often, ShockWave or Music Passages?

ShockWave ships an update every 2 months, and Music Passages every 13 months. Most recently, ShockWave was updated on November 2, 2026 and Music Passages on October 30, 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.*