# MP3 & MP4 Converter vs Authenticator

The clearest difference is ads: MP3 & MP4 Converter at none against Authenticator's shown. Authenticator's advantage is update cadence (weekly vs every 5 months) and iOS requirement (14.0 vs 16.0). On price, rating, ratings volume and in-app purchases 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 and Authenticator sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

MP3 & MP4 Converter holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 76 and 26 respectively.

MP3 & MP4 Converter ships an update every 5 months, Authenticator weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | MP3 & MP4 Converter | Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (76 ratings)](https://appshunter.io/ios/app/mp3-and-mp4-converter/id6748683841/reviews)** | [4.5 (26 ratings)](https://appshunter.io/ios/app/authenticator-secure-2fa-auth/id6749149708/reviews) |
| Number of ratings | **76** | 26 |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 158 MB | 73 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Danyil Podziraev](https://appshunter.io/developer/1826997437) | [Timon Scherzinger](https://appshunter.io/developer/1895022963) |

## 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 |


### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-secure-2fa-auth/id6749149708)

Securely manage your two-factor authentication tokens and passwords in one place. This app offers offline code generation and a private in-app browser. Free users can manage existing codes and passwords, while premium subscribers gain unlimited creation and secure browsing.

**Highlights:** Organize 2FA tokens and passwords, Offline code generation, Built-in secure browser, Manage existing codes and passwords (free), Unlimited code/password creation (premium), Face ID access

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $17.99 | per month |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is MP3 & MP4 Converter free?

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

### Is Authenticator free?

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

### Which has better reviews, MP3 & MP4 Converter or Authenticator?

MP3 & MP4 Converter is rated higher. MP3 & MP4 Converter averages 4.7 out of 5 from 76 ratings, while Authenticator averages 4.5 from 26 ratings.

### Do MP3 & MP4 Converter or Authenticator have ads?

Authenticator shows ads; MP3 & MP4 Converter does not.

### Which is updated more often, MP3 & MP4 Converter or Authenticator?

MP3 & MP4 Converter ships an update every 5 months, and Authenticator weekly. Most recently, MP3 & MP4 Converter was updated on October 24, 2026 and Authenticator on October 24, 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.*