# KMN666 vs FixM4A

The clearest difference is in-app purchases: KMN666 at none against FixM4A's 1. KMN666 also leads on iOS requirement (8.1 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. FixM4A sells 1 one-off in-app purchase. KMN666 asks for nothing beyond the download.

## The numbers

| Metric | KMN666 | FixM4A |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 11 MB |
| Requires iOS | **8.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [维柱 邓](https://appshunter.io/developer/442896877) | [Newkline Co., Ltd.](https://appshunter.io/developer/581922117) |

## What reviewers say

### KMN666

[App page](https://appshunter.io/ios/app/kmn666/id1196173939)

**Features:** macOS Compatibility

**In-app purchases:** none


### FixM4A

[App page](https://appshunter.io/ios/app/fixm4a/id6743666599)

This utility tool aims to recover unplayable M4A audio files corrupted by truncation or damage. It extracts and converts available data from damaged files to restore them. Users select the corrupted file and a similar good file to initiate the repair process.

**Highlights:** Repair truncated M4A files, Recover corrupted audio, Extract data from damaged files, Convert restored audio, User-friendly repair process

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fix M4A | $3.99 | one-time |


## Frequently asked questions

### Is KMN666 free?

KMN666 is free to download, with no in-app purchases.

### Is FixM4A free?

FixM4A is free to download, with in-app purchases available.

### Do KMN666 or FixM4A have ads?

Neither KMN666 nor FixM4A 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.*