# USB Stick with Viewers vs USB Sharp Pro

The clearest difference is in-app purchases: USB Sharp Pro at none against USB Stick with Viewers's 9. USB Sharp Pro also leads on review sentiment (60% vs 33%). USB Stick with Viewers's advantage is price ($1.99 vs $2.99). On update cadence, ads, device support and iOS requirement there is nothing between them.

USB Stick with Viewers costs $1.99 and USB Sharp Pro $2.99 up front. USB Stick with Viewers sells 9 one-off in-app purchases. USB Sharp Pro asks for nothing beyond the download.

USB Stick with Viewers ships an update every 6 weeks, USB Sharp Pro every 2 months. The most recent releases landed on August 22, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | USB Stick with Viewers | USB Sharp Pro |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | — | **[4.0 (12 ratings)](https://appshunter.io/ios/app/usb-sharp-pro/id436590784/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | 33.3% of reviews | **59.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 33 MB | 52 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Corporate Smalltalk Consulting Ltd](https://appshunter.io/developer/312622074) | [锦文 游](https://appshunter.io/developer/406832160) |

## What reviewers say

### USB Stick with Viewers

[App page](https://appshunter.io/ios/app/usb-stick-with-viewers/id404616588)

Transform your iOS device into a portable storage solution. Easily transfer files to and from your computer via iTunes, and access your Dropbox files offline. Annotate documents, sign faxes, and organize your files with optional local storage folders.

**Highlights:** File transfer via iTunes, Dropbox file caching and offline viewing, Document annotation and signing, Local folder organization, Support for various document types, PDF and FAX pre-rendering, Print, email, and PDF creation

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No iAds | $0.99 | one-time |
| Folders | $0.99 | one-time |
| Accelerated PDF viewing | $1.99 | one-time |
| Extra Image Types | $2.99 | one-time |
| Large Format Pages | $3.99 | one-time |
| Enable Signature and Annotation | $3.99 | one-time |
| Enable Cloud Server | $4.99 | one-time |
| Read Fax files | $5.99 | one-time |
| Everything | $9.99 | one-time |


### USB Sharp Pro

[App page](https://appshunter.io/ios/app/usb-sharp-pro/id436590784)

Transform your iPhone or iPad into a portable wireless storage disk for efficient file management.  Supports a wide range of file types for viewing, editing, and transferring via Wi-Fi or iTunes.

**Highlights:** Wireless storage disk, File management, Wi-Fi transfer, iTunes file sharing, Document reader, E-book reader, Music player

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

**In-app purchases:** none


## Frequently asked questions

### Is USB Stick with Viewers free?

USB Stick with Viewers costs $1.99, and also offers in-app purchases.

### Is USB Sharp Pro free?

USB Sharp Pro costs $2.99, with no in-app purchases.

### Do USB Stick with Viewers or USB Sharp Pro have ads?

Neither USB Stick with Viewers nor USB Sharp Pro shows ads.

### Which is updated more often, USB Stick with Viewers or USB Sharp Pro?

USB Stick with Viewers ships an update every 6 weeks, and USB Sharp Pro every 2 months. Most recently, USB Stick with Viewers was updated on August 22, 2026 and USB Sharp Pro on September 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*