# The Audio Converter vs DuroMod

The clearest difference is review sentiment: DuroMod at 100% against The Audio Converter's 35%. DuroMod also leads on in-app purchases (none vs 6) and rating (5.0 vs 4.6). The Audio Converter's advantage is price (Free vs $4.99) and ratings volume (14K vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

The Audio Converter is free to download; DuroMod costs $4.99 up front. The Audio Converter sells 6 in-app purchases, starting at $3.99 per month. DuroMod asks for nothing beyond the download.

DuroMod holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: The Audio Converter has 14K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 35% of The Audio Converter's written reviews are positive against 100% of DuroMod's.

The Audio Converter ships an update every 3 months, DuroMod every 6 months. The most recent releases landed on November 13, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | The Audio Converter | DuroMod |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [4.6 (14K ratings)](https://appshunter.io/ios/app/the-audio-converter/id889643660/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/duromod/id1212080401/reviews)** |
| Number of ratings | **14K** | 1 |
| Positive reviews | 34.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 46 MB | 0 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Float Tech, LLC](https://appshunter.io/developer/483697886) | [Peter Cerhan](https://appshunter.io/developer/1212080400) |

## What reviewers say

### The Audio Converter

[App page](https://appshunter.io/ios/app/the-audio-converter/id889643660)

Easily convert audio and video files to various audio formats like MP3, WAV, and AAC. Supports dozens of input formats and offers quick, battery-friendly cloud conversions, with an increasing number of local conversion options.

**Highlights:** Convert to MP3, WAV, M4A, AAC, FLAC, OGG, WMA, AIFF, Supports dozens of input formats, Fast cloud and local conversions, In-app file browser, Share files via AirDrop, Secure cloud conversion process

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Pass | $3.99 | per month |
| Premium Pass | $3.99 | per month |
| Premium Pass | $9.99 | per year |
| Lifetime Pass | $12.99 | one-time |
| Lifetime Pass | $29.99 | one-time |
| Lifetime Pass Promo | $29.99 | one-time |

**What reviewers like**

- 🚀 Efficient file conversion
- 👍 Easy to use
- 🚀 Fast conversion speed
- 👍 Works great for audio/video conversion
- 👍 Useful for creators

**What reviewers complain about**

- 🐛 Crashes/freezes on iOS 13
- 💰 Subscription required for full functionality
- 🔒 Privacy concerns with file uploads
- 🤔 Unclear subscription model
- 🤔 Limited free features

**Reported bugs**

- Conversion errors
- Inconsistent behavior with file sizes
- Login/subscription issues

**Requested features**

- Bulk file conversion
- Local file conversion (no uploads)
- More audio format support (e.g. OPUS)
- Volume/quality control for converted files


### DuroMod

[App page](https://appshunter.io/ios/app/duromod/id1212080401)

Convert durometer readings to elastic modulus for polymers. This tool supports all 12 durometer scales conforming to ASTM D2240-05, providing accurate material property data.

**Highlights:** Convert durometer readings to elastic modulus, Supports all 12 durometer scales, Conforms to ASTM D2240-05, Based on linear elastic indentation mechanics, Developed at Rheology Research Center

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Audio Converter free?

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

### Is DuroMod free?

DuroMod costs $4.99, with no in-app purchases.

### Which has better reviews, The Audio Converter or DuroMod?

DuroMod is rated higher. The Audio Converter averages 4.6 out of 5 from 14K ratings, while DuroMod averages 5.0 from 1 ratings.

### Do The Audio Converter or DuroMod have ads?

Neither The Audio Converter nor DuroMod shows ads.

### Which is updated more often, The Audio Converter or DuroMod?

The Audio Converter ships an update every 3 months, and DuroMod every 6 months. Most recently, The Audio Converter was updated on November 13, 2026 and DuroMod on November 2, 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.*