# Piano Designer vs KORG Module

The clearest difference is rating: KORG Module at 4.6 against Piano Designer's 3.2. KORG Module also leads on ratings volume (785 vs 10) and update cadence (monthly vs every 4 months). Piano Designer's advantage is in-app purchases (none vs 21) and iOS requirement (9.3 vs 15.6). 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. Piano Designer asks for nothing beyond the download.

KORG Module holds the better App Store score, 4.6 against 3.2. That said, the two scores are not equally well evidenced: KORG Module has 785 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 33% of Piano Designer's written reviews are positive against 52% of KORG Module's.

Piano Designer ships an update every 4 months, KORG Module monthly. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Piano Designer | KORG Module |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (10 ratings)](https://appshunter.io/ios/app/piano-designer/id901766931/reviews) | **[4.6 (785 ratings)](https://appshunter.io/ios/app/korg-module/id1048875111/reviews)** |
| Number of ratings | 10 | **785** |
| Positive reviews | 33.3% of reviews | **51.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 1.7 GB |
| Requires iOS | **9.3** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Roland Corporation](https://appshunter.io/developer/387333694) | [KORG INC.](https://appshunter.io/developer/363714046) |

## What reviewers say

### Piano Designer

[App page](https://appshunter.io/ios/app/piano-designer/id901766931)

This app allows Roland piano owners to deeply customize their instrument's sound. Adjust parameters like pitch, tone, and resonance to fine-tune the audio experience, or select pre-made settings from professional technicians. Connect via Bluetooth or Wi-Fi to easily transfer your personalized sound profiles to your piano.

**Highlights:** Personalize piano sound parameters, Adjust pitch, volume, and tonal characteristics, Control lid position, string, and hammer resonance, Utilize ready-to-play custom sound settings, Edit and transfer sound profiles to piano, Graphical touchscreen interface

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Piano Designer free?

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

### Is KORG Module free?

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

### Which has better reviews, Piano Designer or KORG Module?

KORG Module is rated higher. Piano Designer averages 3.2 out of 5 from 10 ratings, while KORG Module averages 4.6 from 785 ratings.

### Do Piano Designer or KORG Module have ads?

Neither Piano Designer nor KORG Module shows ads.

### Which is updated more often, Piano Designer or KORG Module?

Piano Designer ships an update every 4 months, and KORG Module monthly. Most recently, Piano Designer was updated on October 24, 2026 and KORG Module on October 26, 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.*