# Airnizer vs Convert MP4 to MP3

The clearest difference is in-app purchases: Airnizer at none against Convert MP4 to MP3's 1. Airnizer also leads on iOS requirement (10.0 vs 18.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Convert MP4 to MP3 sells 1 one-off in-app purchase. Airnizer asks for nothing beyond the download.

Airnizer ships an update every 6 weeks, Convert MP4 to MP3 every 2 months. The most recent releases landed on October 13, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Airnizer | Convert MP4 to MP3 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/convert-mp4-to-mp3/id6754397301/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 60 MB | 15 MB |
| Requires iOS | **10.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Martin Javier Bronzino](https://appshunter.io/developer/1180839613) | [Antonio Gonzalez de la aleja german](https://appshunter.io/developer/1839645711) |

## What reviewers say

### Airnizer

[App page](https://appshunter.io/ios/app/airnizer/id1546367000)

**Features:** macOS Compatibility

**In-app purchases:** none


### Convert MP4 to MP3

[App page](https://appshunter.io/ios/app/convert-mp4-to-mp3/id6754397301)

Easily extract audio from MP4 videos and convert them into high-quality MP3 files. This application offers a fast, simple, and efficient conversion process with a single tap, preserving excellent sound fidelity. Its intuitive interface requires no technical expertise and it runs smoothly with low resource usage.

**Highlights:** Quick MP4 to MP3 conversion, High audio fidelity, Intuitive user interface, Low resource usage, Extract audio from videos

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Airnizer free?

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

### Is Convert MP4 to MP3 free?

Convert MP4 to MP3 is free to download, with in-app purchases available.

### Do Airnizer or Convert MP4 to MP3 have ads?

Neither Airnizer nor Convert MP4 to MP3 shows ads.

### Which is updated more often, Airnizer or Convert MP4 to MP3?

Airnizer ships an update every 6 weeks, and Convert MP4 to MP3 every 2 months. Most recently, Airnizer was updated on October 13, 2026 and Convert MP4 to MP3 on November 9, 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.*