# KORG Module Pro vs AG Controller

The clearest difference is review sentiment: KORG Module Pro at 64% against AG Controller's 11%. KORG Module Pro also leads on rating (4.6 vs 2.1) and ratings volume (1.2K vs 8). AG Controller's advantage is price (Free vs $39.99) and in-app purchases (none vs 20). On ads and device support there is nothing between them.

AG Controller is free to download; KORG Module Pro costs $39.99 up front. KORG Module Pro sells 20 one-off in-app purchases. AG Controller asks for nothing beyond the download.

KORG Module Pro holds the better App Store score, 4.6 against 2.1. That said, the two scores are not equally well evidenced: KORG Module Pro has 1.2K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 64% of KORG Module Pro's written reviews are positive against 11% of AG Controller's.

## The numbers

| Metric | KORG Module Pro | AG Controller |
| --- | --- | --- |
| Price | $39.99 | **Free** |
| Rating | **[4.6 (1.2K ratings)](https://appshunter.io/ios/app/korg-module-pro/id932191687/reviews)** | [2.1 (8 ratings)](https://appshunter.io/ios/app/ag-controller/id1555974292/reviews) |
| Number of ratings | **1.2K** | 8 |
| Positive reviews | **63.7% of reviews** | 10.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1.7 GB | 75 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KORG INC.](https://appshunter.io/developer/363714046) | [Yamaha Corporation](https://appshunter.io/developer/353469356) |

## What reviewers say

### KORG Module Pro

[App page](https://appshunter.io/ios/app/korg-module-pro/id932191687)

This app provides a high-quality mobile sound module for iOS devices, offering professional piano and keyboard sounds. It's ideal for live performance and music production, allowing users to create studio-quality music anywhere with just an iOS device and a MIDI keyboard. Expandable sound libraries and integration with other music apps enhance its capabilities.

**Highlights:** High-quality piano and keyboard sound engines, Six dedicated sound engines, Ultra-low latency, AUv3 support, Set list function with score viewer, Expansion sound libraries, Performance recording and sharing

**Features:** Family Sharing

**In-app purchases (20)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hybrid Synth Essential 2 | $4.99 | one-time |
| Future Synths | $4.99 | one-time |
| London Symphonic Orchestra | $6.99 | one-time |
| Dream Pop | $6.99 | one-time |
| Petrichor | $6.99 | one-time |
| Shoulder Pads | $6.99 | one-time |
| Space Western | $6.99 | one-time |
| Wurley Electric Piano | $9.99 | one-time |
| Mellow Tape Keyboard | $9.99 | one-time |
| Soundiron Voice of Rapture Soprano | $9.99 | one-time |
| Wild Kits | $9.99 | one-time |
| Dreamy Synths | $9.99 | one-time |
| Organ & Clav Collection | $19.99 | one-time |
| TRITON Best Selection | $19.99 | one-time |
| 80's Electric Piano | $19.99 | one-time |
| Orchestral Dreams | $19.99 | one-time |
| Classic EP-88M | $19.99 | one-time |
| Ivory Mobile American D | $29.99 | one-time |
| Ivory Mobile Grand | $29.99 | one-time |
| Module Performance Expansion | $29.99 | one-time |

**What reviewers like**

- 🎹 Excellent sound quality
- 🎨 Versatile sound library
- 📋 Useful set list functionality
- 🔌 Good MIDI integration
- 💻 Seamless integration with Korg Gadget

**What reviewers complain about**

- 🔇 Low volume/output issues
- 🐛 Crashes and stability problems
- 🔀 Inconsistent behavior when switching patches
- 🔒 Difficulty restoring purchased content
- 🔍 Limited sound customization options

**Reported bugs**

- Purchased content not appearing or disappearing
- Sustain pedal not functioning properly
- Polyphony issues causing notes to drop out
- Compatibility problems with newer iOS versions

**Requested features**

- Add split and layer functionality
- Implement MIDI learn capabilities
- Improve set list management with reordering and copying
- Add support for background audio and AUv3
- Provide better integration with other Korg apps


### AG Controller

[App page](https://appshunter.io/ios/app/ag-controller/id1555974292)

Control the DSP functions of compatible live-streaming USB microphones from your iOS device. Adjust internal DSP effects for optimal voice and sound quality. Offers simple and detailed modes for varying user experience levels.

**Highlights:** Control DSP functions, iOS device compatibility, USB connection, Adjust internal DSP effects, Simple and Detail modes

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KORG Module Pro free?

KORG Module Pro costs $39.99, and also offers in-app purchases.

### Is AG Controller free?

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

### Which has better reviews, KORG Module Pro or AG Controller?

KORG Module Pro is rated higher. KORG Module Pro averages 4.6 out of 5 from 1.2K ratings, while AG Controller averages 2.1 from 8 ratings.

### Do KORG Module Pro or AG Controller have ads?

Neither KORG Module Pro nor AG Controller shows ads.

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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.*