# KeyPad MIDI Controller vs Bass Relative Pitch Trainer

The clearest difference is ads: KeyPad MIDI Controller at none against Bass Relative Pitch Trainer's shown. KeyPad MIDI Controller also leads on update cadence (every 4 days vs every 8 months) and monetization model (free vs free with in-app purchases). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for KeyPad MIDI Controller against 5.0 for Bass Relative Pitch Trainer. That said, the two scores are not equally well evidenced: KeyPad MIDI Controller has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

KeyPad MIDI Controller ships an update every 4 days, Bass Relative Pitch Trainer every 8 months. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | KeyPad MIDI Controller | Bass Relative Pitch Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (16 ratings)](https://appshunter.io/ios/app/keypad-midi-controller/id6758680165/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bass-relative-pitch-trainer/id6758913116/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 8 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 24 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DiscoDSP LLC](https://appshunter.io/developer/1465262828) | [Tomoaki Okubo](https://appshunter.io/developer/1830995076) |

## What reviewers say

### KeyPad MIDI Controller

[App page](https://appshunter.io/ios/app/keypad-midi-controller/id6758680165)

Transform your device into a professional MIDI controller with touch-optimized piano keys, drum pads, and performance controls. It supports SFZ, SF2, WAV, and M4A samples, and can control iOS apps, hardware synths, and Mac software wirelessly or wired.

**Highlights:** Touch-optimized piano keyboard, 9-pad drum grid, XY performance pad, Built-in sound engine (SF2, SFZ, WAV, M4A), AUv3 plugin support, Network MIDI for Mac control, Aftertouch and MPE expression

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

**In-app purchases:** none


### Bass Relative Pitch Trainer

[App page](https://appshunter.io/ios/app/bass-relative-pitch-trainer/id6758913116)

This app helps bass guitarists improve their ear training by focusing on the instrument's specific range and fretboard. It offers various modes to identify notes, intervals, and chords directly on a visual fretboard, using professional bass samples.

**Highlights:** Professional bass samples, Fretboard-targeted practice, Foundation training modes, Applied walking bass training, Scale & chord reference, Dark Mode design

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

**In-app purchases:** none


## Frequently asked questions

### Is KeyPad MIDI Controller free?

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

### Is Bass Relative Pitch Trainer free?

Bass Relative Pitch Trainer is free to download, with no in-app purchases.

### Which has better reviews, KeyPad MIDI Controller or Bass Relative Pitch Trainer?

Bass Relative Pitch Trainer is rated higher. KeyPad MIDI Controller averages 4.9 out of 5 from 16 ratings, while Bass Relative Pitch Trainer averages 5.0 from 1 ratings.

### Do KeyPad MIDI Controller or Bass Relative Pitch Trainer have ads?

Bass Relative Pitch Trainer shows ads; KeyPad MIDI Controller does not.

### Which is updated more often, KeyPad MIDI Controller or Bass Relative Pitch Trainer?

KeyPad MIDI Controller ships an update every 4 days, and Bass Relative Pitch Trainer every 8 months. Most recently, KeyPad MIDI Controller was updated on October 24, 2026 and Bass Relative Pitch Trainer on October 31, 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.*