# KORG Module vs Synth Bass Pro

The clearest difference is review sentiment: KORG Module at 52% against Synth Bass Pro's 0%. KORG Module also leads on price (Free vs $1.99) and rating (4.6 vs 3.0). Synth Bass Pro's advantage is in-app purchases (none vs 21). On ads, device support and iOS requirement there is nothing between them.

KORG Module is free to download; Synth Bass Pro costs $1.99 up front. KORG Module sells 21 one-off in-app purchases. Synth Bass Pro asks for nothing beyond the download.

KORG Module holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: KORG Module has 783 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 52% of KORG Module's written reviews are positive against 0% of Synth Bass Pro's.

KORG Module ships an update monthly, Synth Bass Pro every 4 months. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | KORG Module | Synth Bass Pro |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.6 (783 ratings)](https://appshunter.io/ios/app/korg-module/id1048875111/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/synth-bass-pro/id1592554833/reviews) |
| Number of ratings | **783** | 2 |
| Positive reviews | **51.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 1.7 GB | 47 MB |
| Requires iOS | 15.6 | **14.3** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KORG INC.](https://appshunter.io/developer/363714046) | [Caleb Smith](https://appshunter.io/developer/1586199403) |

## 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 | $9.99 | one-time |
| Essential Complete | $19.99 | one-time |
| Module Performance Expansion | $29.99 | 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


### Synth Bass Pro

[App page](https://appshunter.io/ios/app/synth-bass-pro/id1592554833)

Create powerful low-end sounds with three iconic synth bass presets. Features an 808 "drop" note for impactful builds and bridges, offering an alternative to traditional bass guitars for various music genres.

**Highlights:** Three iconic synth bass sounds, 808 "drop" note for builds, Low-end sound alternative, Infinite loop possibilities, Suitable for various music genres

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

**In-app purchases:** none


## Frequently asked questions

### Is KORG Module free?

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

### Is Synth Bass Pro free?

Synth Bass Pro costs $1.99, with no in-app purchases.

### Which has better reviews, KORG Module or Synth Bass Pro?

KORG Module is rated higher. KORG Module averages 4.6 out of 5 from 783 ratings, while Synth Bass Pro averages 3.0 from 2 ratings.

### Do KORG Module or Synth Bass Pro have ads?

Neither KORG Module nor Synth Bass Pro shows ads.

### Which is updated more often, KORG Module or Synth Bass Pro?

KORG Module ships an update monthly, and Synth Bass Pro every 4 months. Most recently, KORG Module was updated on October 17, 2026 and Synth Bass Pro on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*