# USB Disk Pro vs Unit Converter All

The clearest difference is price: Unit Converter All at $9.99 against USB Disk Pro's $99.99. Unit Converter All also leads on review sentiment (80% vs 66%) and iOS requirement (12.0 vs 16.0). USB Disk Pro's advantage is rating (4.5 vs 4.3) and ratings volume (142 vs 7). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

USB Disk Pro costs $99.99 and Unit Converter All $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

USB Disk Pro holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: USB Disk Pro has 142 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 66% of USB Disk Pro's written reviews are positive against 80% of Unit Converter All's, so the app with the better star average is not the one people write more warmly about.

USB Disk Pro ships an update every 2 months, Unit Converter All every 3 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | USB Disk Pro | Unit Converter All |
| --- | --- | --- |
| Price | $99.99 | **$9.99** |
| Rating | **[4.5 (142 ratings)](https://appshunter.io/ios/app/usb-disk-pro/id412591849/reviews)** | [4.3 (7 ratings)](https://appshunter.io/ios/app/unit-converter-all-in-1/id1061932606/reviews) |
| Number of ratings | **142** | 7 |
| Positive reviews | 65.6% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | Paid |
| Size | 215 MB | 13 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad, Apple TV, Apple Watch | iPhone, iPad, iPod, Mac |
| Age rating | 17+ | 4+ |
| Developer | [Imesart S.a.r.l.](https://appshunter.io/developer/290160983) | [Intemodino Group s.r.o.](https://appshunter.io/developer/557849644) |

## What reviewers say

### USB Disk Pro

[App page](https://appshunter.io/ios/app/usb-disk-pro/id412591849)

Manage and view documents on your iPhone and iPad with this powerful file manager. It offers a built-in viewer, easy file transfers via iTunes or Wi-Fi, and supports numerous cloud services. Secure your files with encryption and access them from various locations.

**Highlights:** Store and view files, Built-in document viewer, iTunes and Wi-Fi file transfers, Cloud service integration, File encryption and protection, Supports Files app

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple and reliable
- 👍 Great for file storage and management
- 🚀 Efficient file transfer
- 👍 Versatile file support
- 🚀 Excellent app for iPad/iPhone

**What reviewers complain about**

- 🐛 Occasional crashes and stability issues
- 🐛 Compatibility problems with certain file formats
- 🐛 Blurry document rendering
- 🐛 Unreliable cloud/network connectivity

**Reported bugs**

- App closing unexpectedly when using certain features
- Inability to open large files without crashing
- Inconsistent file handling and naming

**Requested features**

- Advanced video player controls (fast forward, slow motion, zoom)
- Basic image editing tools
- Improved file/folder organization and naming
- Integration with more cloud storage services


### Unit Converter All

[App page](https://appshunter.io/ios/app/unit-converter-all-in-1/id1061932606)

Easily convert between a vast array of US, imperial, and metric units across multiple categories including length, area, volume, weight, and temperature. This comprehensive tool supports numerous specific units within each conversion type.

**Highlights:** Length conversion, Area conversion, Volume conversion, Weight conversion, Temperature conversion, Speed conversion, Power conversion, Pressure conversion

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is USB Disk Pro free?

USB Disk Pro costs $99.99, with no in-app purchases.

### Is Unit Converter All free?

Unit Converter All costs $9.99, with no in-app purchases.

### Which has better reviews, USB Disk Pro or Unit Converter All?

USB Disk Pro is rated higher. USB Disk Pro averages 4.5 out of 5 from 142 ratings, while Unit Converter All averages 4.3 from 7 ratings.

### Do USB Disk Pro or Unit Converter All have ads?

Neither USB Disk Pro nor Unit Converter All shows ads.

### Which is updated more often, USB Disk Pro or Unit Converter All?

USB Disk Pro ships an update every 2 months, and Unit Converter All every 3 months. Most recently, USB Disk Pro was updated on October 29, 2026 and Unit Converter All 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.*