# Audio Converter & Extractor vs Knowless

The clearest difference is update cadence: Knowless at every 3 days against Audio Converter & Extractor's every 10 days. Audio Converter & Extractor's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Audio Converter & Extractor sells 2 in-app purchases, starting at $6.99 per 7 days and Knowless sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Audio Converter & Extractor ships an update every 10 days, Knowless every 3 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Audio Converter & Extractor | Knowless |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/audio-converter-and-extractor/id6474115318/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | Subscription | — |
| Size | 17 MB | 277 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NEXTPIXEL APPS LLP](https://appshunter.io/developer/1584487280) | [Loc Le](https://appshunter.io/developer/6788564147) |

## What reviewers say

### Audio Converter & Extractor

[App page](https://appshunter.io/ios/app/audio-converter-and-extractor/id6474115318)

Easily convert audio files to various formats like MP3, WAV, and FLAC. This app offers fast, high-fidelity conversions with a user-friendly interface, ensuring compatibility across devices while prioritizing your data's security.

**Highlights:** Convert audio to MP3, WAV, FLAC, AAC, and more, High-fidelity audio output, Fast conversion speeds, User-friendly mobile interface, Secure and private data handling

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio MP3 Converter | $6.99 | per 7 days |
| Audio Converter MP3 | $12.99 | per month |


### Knowless

[App page](https://appshunter.io/ios/app/knowless/id6813508086)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knowless Adless | $4.99 | one-time |


## Frequently asked questions

### Is Audio Converter & Extractor free?

Audio Converter & Extractor is free to download, with in-app purchases available.

### Is Knowless free?

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

### Do Audio Converter & Extractor or Knowless have ads?

Neither Audio Converter & Extractor nor Knowless shows ads.

### Which is updated more often, Audio Converter & Extractor or Knowless?

Audio Converter & Extractor ships an update every 10 days, and Knowless every 3 days. Most recently, Audio Converter & Extractor was updated on October 24, 2026 and Knowless on October 18, 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.*