# KORG Module vs PianoToolbox

The clearest difference is review sentiment: PianoToolbox at 100% against KORG Module's 52%. PianoToolbox also leads on in-app purchases (none vs 21) and iOS requirement (13 vs 15.6). KORG Module's advantage is rating (4.6 vs 4.0) and update cadence (monthly vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. KORG Module sells 21 one-off in-app purchases. PianoToolbox asks for nothing beyond the download.

KORG Module holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: KORG Module has 783 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 52% of KORG Module's written reviews are positive against 100% of PianoToolbox's, so the app with the better star average is not the one people write more warmly about.

KORG Module ships an update monthly, PianoToolbox every 7 months. The most recent releases landed on October 19, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | KORG Module | PianoToolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (783 ratings)](https://appshunter.io/ios/app/korg-module/id1048875111/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/pianotoolbox/id1466029957/reviews) |
| Number of ratings | **783** | 1 |
| Positive reviews | 51.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1.7 GB | 43 MB |
| Requires iOS | 15.6 | **13** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KORG INC.](https://appshunter.io/developer/363714046) | [Clemen Software (ShangHai) Co., Ltd](https://appshunter.io/developer/990121308) |

## What reviewers say

### KORG Module

[App page](https://appshunter.io/ios/app/korg-module/id1048875111)

This app offers professional piano and keyboard sounds for mobile devices. The free version provides access to high-quality piano sounds, with options to unlock more sound libraries and features through in-app purchases or by connecting Korg MIDI controllers.

**Highlights:** High-quality piano and keyboard sounds, Customizable sound sets with over 30 libraries, AUv3 support, Ultra-low latency sound engine, Unlock sounds with Korg MIDI controllers

**Features:** Family Sharing

**In-app purchases (21)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day trial:TRITON Best select | Free | one-time |
| 7-day trial : Organ & Clav | Free | one-time |
| 7-day trial : Module Perf Exp | Free | one-time |
| 7-day trial : Ivory Grand | Free | one-time |
| 7-day trial : Ivory American D | Free | one-time |
| 7-day trial:Essential Complete | Free | one-time |
| 7-day trial Hybrid 2 | Free | one-time |
| 7-day trial : 80s Dance Pop | Free | one-time |
| 7-day Trial : GENERAL 128 | Free | one-time |
| 7-day trial : OASYS Piano | Free | one-time |
| 7-day Trial: M1 Best Selection | Free | one-time |
| 7-day Trial : Wild Kits | Free | one-time |
| 7-day Trial : Neo Soul | Free | one-time |
| 7-day trial : 80's E.Piano | Free | one-time |
| 7-day Trial : Classic EP-88M | Free | one-time |
| 7-day trial : Dreamy Synths | Free | one-time |
| Hybrid Synth Pack 2 | $4.99 | one-time |
| Space Western | $6.99 | one-time |
| TRITON Best Selection | $19.99 | one-time |
| Module Performance Expansion | $29.99 | one-time |
| Essential Complete | $39.99 | one-time |

**What reviewers like**

- 🎹 Great sounds and interface
- 🎨 Realistic piano and organ sounds
- 💻 Works well as an AUv3 plugin
- 🔍 Helpful as a teaching tool
- 🎚️ Excellent sound quality and options

**What reviewers complain about**

- 🔁 Frequent need to restore purchases
- ⚠️ Compatibility issues with Korg hardware
- 🔒 Confusing purchase options and restrictions
- 🔋 Causes device heating issues
- 🔇 Low volume compared to other apps

**Reported bugs**

- Purchased sounds disappearing after updates
- Inability to delete individual modules to save space
- Inconsistent behavior with Bluetooth MIDI controllers
- Crashes when using certain expansion packs

**Requested features**

- Add virtual pitch bend and modulation wheels
- Improve Gadget integration and availability of IAPs
- Implement AUv3 support for better integration
- Provide a more intuitive and streamlined interface
- Add more instrument categories like brass, woodwinds, and Latin percussion


### PianoToolbox

[App page](https://appshunter.io/ios/app/pianotoolbox/id1466029957)

Connect to your digital piano via Bluetooth to unlock its full capabilities. Explore and customize instrument sounds with deep parameter editing, and manage built-in musical content like metronomes and songs.

**Highlights:** Visual sound browser, Deep sound parameter editing, Custom sound storage, Metronome and rhythm control, Built-in song playback

**In-app purchases:** none


## Frequently asked questions

### Is KORG Module free?

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

### Is PianoToolbox free?

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

### Which has better reviews, KORG Module or PianoToolbox?

KORG Module is rated higher. KORG Module averages 4.6 out of 5 from 783 ratings, while PianoToolbox averages 4.0 from 1 ratings.

### Do KORG Module or PianoToolbox have ads?

Neither KORG Module nor PianoToolbox shows ads.

### Which is updated more often, KORG Module or PianoToolbox?

KORG Module ships an update monthly, and PianoToolbox every 7 months. Most recently, KORG Module was updated on October 19, 2026 and PianoToolbox on October 14, 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.*