# Feedback Trainer vs AudioEngineerKit

The clearest difference is in-app purchases: Feedback Trainer at none against AudioEngineerKit's 1. Feedback Trainer also leads on iOS requirement (16.6 vs 26.5). AudioEngineerKit's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. AudioEngineerKit sells 1 one-off in-app purchase. Feedback Trainer asks for nothing beyond the download.

Feedback Trainer ships an update every 2 weeks, AudioEngineerKit every 3 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Feedback Trainer | AudioEngineerKit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 4 MB | 3 MB |
| Requires iOS | **16.6** | 26.5 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Shunsuke Takasu](https://appshunter.io/developer/6788974380) | [HYO SEOP LEE](https://appshunter.io/developer/6790621758) |

## What reviewers say

### Feedback Trainer

[App page](https://appshunter.io/ios/app/feedback-trainer/id6788974378)

**Features:** macOS Compatibility

**In-app purchases:** none


### AudioEngineerKit

[App page](https://appshunter.io/ios/app/audioengineerkit-spl-and-rta/id6801498086)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 잠금해제 | $2.99 | one-time |


## Frequently asked questions

### Is Feedback Trainer free?

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

### Is AudioEngineerKit free?

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

### Do Feedback Trainer or AudioEngineerKit have ads?

Feedback Trainer shows ads; AudioEngineerKit does not.

### Which is updated more often, Feedback Trainer or AudioEngineerKit?

Feedback Trainer ships an update every 2 weeks, and AudioEngineerKit every 3 weeks. Most recently, Feedback Trainer was updated on October 13, 2026 and AudioEngineerKit on October 16, 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.*