# WAV to MP3 vs Tool Box

The clearest difference is update cadence: Tool Box at every 4 weeks against WAV to MP3's every 2 months. WAV to MP3's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. WAV to MP3 sells 5 in-app purchases, starting at $3.99 per 7 days and Tool Box sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

WAV to MP3 ships an update every 2 months, Tool Box every 4 weeks. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | WAV to MP3 | Tool Box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (33 ratings)](https://appshunter.io/ios/app/wav-to-mp3/id6504010000/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 89 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andy Sutanto](https://appshunter.io/developer/1659282966) | [Tomohito Kii](https://appshunter.io/developer/1689523321) |

## What reviewers say

### WAV to MP3

[App page](https://appshunter.io/ios/app/wav-to-mp3/id6504010000)

Easily convert WAV audio files to MP3 format for universal device compatibility. Supports batch conversions, multiple audio sources including URLs, and maintains a history of your conversions. Offers a free version with optional premium upgrades.

**Highlights:** Batch conversion, Multiple audio sources (files, computer sync, URL), Conversion history, Simple interface, Fast and efficient conversion, Universal device compatibility

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Convert WAV to MP3 Pro - 1W | $3.99 | per 7 days |
| WAV to MP3 Converter Pro - 1M | $7.99 | per month |
| WAV to MP3 Converter Pro - 1Y | $29.99 | per year |
| Offering for New User | $19.99 | one-time |
| WAV to MP3 Converter Pro | $39.99 | one-time |


### Tool Box

[App page](https://appshunter.io/ios/app/tool-box-diy-tool-guide/id6768692697)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Annual Premium | $14.99 | per year |
| Lifetime Premium | $29.99 | one-time |


## Frequently asked questions

### Is WAV to MP3 free?

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

### Is Tool Box free?

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

### Do WAV to MP3 or Tool Box have ads?

Both WAV to MP3 and Tool Box show ads.

### Which is updated more often, WAV to MP3 or Tool Box?

WAV to MP3 ships an update every 2 months, and Tool Box every 4 weeks. Most recently, WAV to MP3 was updated on November 4, 2026 and Tool Box 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.*