# MIDI Opener vs Modules

The clearest difference is update cadence: MIDI Opener at every 6 days against Modules's monthly. MIDI Opener also leads on review sentiment (64% vs 45%) and ratings volume (86 vs 18). Modules's advantage is iOS requirement (9.0 vs 17.6). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. MIDI Opener sells 13 one-off in-app purchases and Modules sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

MIDI Opener holds the better App Store score, 3.9 against 3.7. Both are backed by a comparable volume of ratings — 86 and 18 respectively. Written reviews point the same way: 64% of MIDI Opener's written reviews are positive against 45% of Modules's.

MIDI Opener ships an update every 6 days, Modules monthly. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MIDI Opener | Modules |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (86 ratings)](https://appshunter.io/ios/app/midi-opener/id1029373282/reviews)** | [3.7 (18 ratings)](https://appshunter.io/ios/app/modules-music-visualizer/id1222489841/reviews) |
| Number of ratings | **86** | 18 |
| Positive reviews | **64.5% of reviews** | 45.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 334 MB | 76 MB |
| Requires iOS | 17.6 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MartianRover](https://appshunter.io/developer/1282183383) | [Y. MOCHIDUKI](https://appshunter.io/developer/556544131) |

## What reviewers say

### MIDI Opener

[App page](https://appshunter.io/ios/app/midi-opener/id1029373282)

This app is a powerful and modern MIDI player designed for musicians, learners, and creators. It offers visual playback, tempo and key control, and advanced track management. Import custom soundbanks and enjoy features like synchronized lyrics and a 3D visualizer.

**Highlights:** Visual MIDI playback, Tempo and key control, Advanced track controls, 128 General MIDI instruments, Built-in effects, Custom soundbanks, Synchronized lyrics, 3D visualizer

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $0.99 | one-time |
| Full Upgrade Discount | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Change Tempo | $1.99 | one-time |
| Change Tempo and Key | $1.99 | one-time |
| All Access Upgrade | $2.99 | one-time |
| Track Controls | $2.99 | one-time |
| Super Tip | $4.99 | one-time |
| MIDI Out | $4.99 | one-time |
| Practice Pack | $4.99 | one-time |
| Full Upgrade | $4.99 | one-time |
| Premium Upgrade | $4.99 | one-time |
| All Access | $7.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🎶 Good sounding instruments
- 🚀 Handles instrument changes well
- ✨ Free to use
- ✅ Plays MIDI files effectively

**What reviewers complain about**

- 🐛 Crashes when changing SoundFonts (iOS 26)
- 🐛 Cuts off beginning of songs
- 🐛 Sustained notes treated as staccato
- 💸 Charging for basic features
- 📉 Poor sound quality for some instruments

**Reported bugs**

- Sustained notes are treated as staccato notes.
- Cuts off the beginning of the song.
- Kicked out of the app when clicking on another SoundFont.
- Crashes when changing SoundFonts (iOS 26).
- Bass drum is too quiet for metal music.

**Requested features**

- Adjust individual track volumes
- Zoom in/out
- Select region to play
- Export features (WAV, MP3, FLAC)
- Playlist functionality


### Modules

[App page](https://appshunter.io/ios/app/modules-music-visualizer/id1222489841)

Create dynamic visual effects synchronized with your music library or microphone input. Select songs from your device to bring your audio to life with unique visual experiences.

**Highlights:** Music visualizer, Microphone input, Local music library integration, Customizable visual effects

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is MIDI Opener free?

MIDI Opener is free to download, with in-app purchases available.

### Is Modules free?

Modules is free to download, with in-app purchases available.

### Which has better reviews, MIDI Opener or Modules?

MIDI Opener is rated higher. MIDI Opener averages 3.9 out of 5 from 86 ratings, while Modules averages 3.7 from 18 ratings.

### Do MIDI Opener or Modules have ads?

Neither MIDI Opener nor Modules shows ads.

### Which is updated more often, MIDI Opener or Modules?

MIDI Opener ships an update every 6 days, and Modules monthly. Most recently, MIDI Opener was updated on October 22, 2026 and Modules on October 24, 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.*