# USB Disk vs iSecure Adapter

The clearest difference is price: iSecure Adapter at Free against USB Disk's $0.99. iSecure Adapter also leads on in-app purchases (none vs 10) and ads (none vs shown). USB Disk's advantage is rating (4.6 vs 2.0) and ratings volume (160 vs 1). On update cadence, device support and iOS requirement there is nothing between them.

iSecure Adapter is free to download; USB Disk costs $0.99 up front. USB Disk sells 10 in-app purchases, starting at $4.99 per month. iSecure Adapter asks for nothing beyond the download.

USB Disk holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: USB Disk has 160 ratings behind it against 1, so its average is the more settled of the two.

USB Disk ships an update every 3 months, iSecure Adapter every 2 months. The most recent releases landed on September 26, 2026 and June 22, 2026 respectively.

## The numbers

| Metric | USB Disk | iSecure Adapter |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.6 (160 ratings)](https://appshunter.io/ios/app/usb-disk/id385275533/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/isecure-adapter/id1442049110/reviews) |
| Number of ratings | **160** | 1 |
| Positive reviews | 70.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#156** | — |
| Size | 170 MB | 28 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Imesart S.a.r.l.](https://appshunter.io/developer/290160983) | [sunprotected technology corp.](https://appshunter.io/developer/1691029358) |

## What reviewers say

### USB Disk

[App page](https://appshunter.io/ios/app/usb-disk/id385275533)

**Currently charting:** #156 Top Paid · Productivity (US App Store)

Manage and view documents on your iPhone or iPad with this intuitive file manager. Access cloud storage, open various file types, and transfer files via iTunes. Advanced features like photo library access and PDF annotation are available via subscription.

**Highlights:** Cloud storage integration (Dropbox, Google Drive, OneDrive, Box), Built-in document viewer for various file types, File transfer via iTunes, Create and open zip files, Swipe navigation and file previews, Email documents and download attachments

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| USB Disk Pro Monthly | $4.99 | per month |
| Audio Player + | $0.99 | one-time |
| Zip files support | $0.99 | one-time |
| Dropbox access | $0.99 | one-time |
| Lock code | $0.99 | one-time |
| Text editor | $0.99 | one-time |
| Evernote access | $0.99 | one-time |
| Google Drive access | $0.99 | one-time |
| OneDrive access | $0.99 | one-time |
| WebDAV access | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient file management
- 💡 Useful for storing and accessing documents
- 👍 Convenient for transferring files between devices

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 💰 Expensive paid features
- 🔒 Concerns about security and privacy
- 🤔 Misleading app description

**Reported bugs**

- Inability to open certain file types
- Compatibility issues with newer iOS versions
- Syncing problems between devices

**Requested features**

- Support for more file types
- Improved integration with cloud storage services
- Ability to edit and annotate files
- Better organization and folder management


### iSecure Adapter

[App page](https://appshunter.io/ios/app/isecure-adapter/id1442049110)

This app facilitates secure data transfer and file protection for iPhone and iPad devices. It allows users to back up photos, videos, and contacts, and transfer files between their device and external storage like USB flash drives or Micro SD cards.

**Highlights:** Secure data transfer, File protection, Backup photos and videos, Backup contacts, Transfer to USB/Micro SD

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is USB Disk free?

USB Disk costs $0.99, and also offers in-app purchases.

### Is iSecure Adapter free?

iSecure Adapter is free to download, with no in-app purchases.

### Which has better reviews, USB Disk or iSecure Adapter?

USB Disk is rated higher. USB Disk averages 4.6 out of 5 from 160 ratings, while iSecure Adapter averages 2.0 from 1 ratings.

### Do USB Disk or iSecure Adapter have ads?

USB Disk shows ads; iSecure Adapter does not.

### Which is updated more often, USB Disk or iSecure Adapter?

USB Disk ships an update every 3 months, and iSecure Adapter every 2 months. Most recently, USB Disk was updated on September 26, 2026 and iSecure Adapter on June 22, 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.*