# USB Sharp Pro vs DSP 1.8

The clearest difference is price: DSP 1.8 at Free against USB Sharp Pro's $2.99. DSP 1.8 also leads on rating (5.0 vs 4.0). USB Sharp Pro's advantage is update cadence (every 2 months vs every 39 months) and ratings volume (12 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

DSP 1.8 is free to download; USB Sharp Pro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DSP 1.8 holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: USB Sharp Pro has 12 ratings behind it against 1, so its average is the more settled of the two.

USB Sharp Pro ships an update every 2 months, DSP 1.8 every 39 months. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | USB Sharp Pro | DSP 1.8 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.0 (12 ratings)](https://appshunter.io/ios/app/usb-sharp-pro/id436590784/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dsp-18/id1289173178/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 64.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 39 months |
| Monetization | Paid | **Free** |
| Size | 52 MB | 47 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [锦文 游](https://appshunter.io/developer/406832160) | [Rainbow Audio GmbH](https://appshunter.io/developer/1284821198) |

## What reviewers say

### 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


### DSP 1.8

[App page](https://appshunter.io/ios/app/dsp-18/id1289173178)

Configure and control a specific audio DSP device wirelessly. Stream audio directly over WiFi. Requires a dedicated hardware module for operation.

**Highlights:** Wireless configuration, WiFi audio streaming, DSP device control, Requires WiFi module

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is USB Sharp Pro free?

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

### Is DSP 1.8 free?

DSP 1.8 is free to download, with no in-app purchases.

### Which has better reviews, USB Sharp Pro or DSP 1.8?

DSP 1.8 is rated higher. USB Sharp Pro averages 4.0 out of 5 from 12 ratings, while DSP 1.8 averages 5.0 from 1 ratings.

### Do USB Sharp Pro or DSP 1.8 have ads?

Neither USB Sharp Pro nor DSP 1.8 shows ads.

### Which is updated more often, USB Sharp Pro or DSP 1.8?

USB Sharp Pro ships an update every 2 months, and DSP 1.8 every 39 months. Most recently, USB Sharp Pro was updated on October 23, 2026 and DSP 1.8 on October 20, 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.*