# MP3 & MP4 Converter vs Invoice.Partner

The clearest difference is in-app purchases: Invoice.Partner at none against MP3 & MP4 Converter's 5. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MP3 & MP4 Converter sells 5 in-app purchases, starting at $4.99 per 7 days. Invoice.Partner asks for nothing beyond the download.

## The numbers

| Metric | MP3 & MP4 Converter | Invoice.Partner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (76 ratings)](https://appshunter.io/ios/app/mp3-and-mp4-converter/id6748683841/reviews)** | — |
| Number of ratings | **76** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | Freemium | — |
| Size | 158 MB | 15 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Danyil Podziraev](https://appshunter.io/developer/1826997437) | [Ninety9 Capital](https://appshunter.io/developer/1851423976) |

## What reviewers say

### MP3 & MP4 Converter

[App page](https://appshunter.io/ios/app/mp3-and-mp4-converter/id6748683841)

Quickly convert audio files between various formats like MP3, WAV, and AAC with high-quality results. This app supports batch conversions and includes a built-in player for previews, making audio file management simple.

**Highlights:** Wide format support (MP3, WAV, AAC, FLAC), Fast conversion without quality loss, Batch conversion for multiple files, Built-in audio player for previews, Easy file management

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Converter – Format Tool | $4.99 | per 7 days |
| Audio Converter – Format Tool | $9.99 | per year |
| Audio Converter – Format Tool | $14.99 | per year |
| Audio Converter – Format Tool | $19.99 | per year |
| Audio Converter – Format Tool | $24.99 | per year |


### Invoice.Partner

[App page](https://appshunter.io/ios/app/invoicepartner/id6755034752)

**In-app purchases:** none


## Frequently asked questions

### Is MP3 & MP4 Converter free?

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

### Is Invoice.Partner free?

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

### Do MP3 & MP4 Converter or Invoice.Partner have ads?

Neither MP3 & MP4 Converter nor Invoice.Partner 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.*