# USB Disk Pro vs Prayer Master

The clearest difference is price: Prayer Master at Free against USB Disk Pro's $99.99. Prayer Master also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (8.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Prayer Master is free to download; USB Disk Pro costs $99.99 up front. Neither carries in-app purchases, so what you see is what you pay.

USB Disk Pro ships an update every 3 months, Prayer Master every 3 weeks. The most recent releases landed on October 13, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | USB Disk Pro | Prayer Master |
| --- | --- | --- |
| Price | $99.99 | **Free** |
| Rating | **[4.5 (142 ratings)](https://appshunter.io/ios/app/usb-disk-pro/id412591849/reviews)** | — |
| Number of ratings | **142** | — |
| Positive reviews | 65.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 215 MB | 57 MB |
| Requires iOS | 16.0 | **8.0** |
| Devices | **iPhone, iPad, Apple TV, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Imesart S.a.r.l.](https://appshunter.io/developer/290160983) | [Greatcallie International Ltd](https://appshunter.io/developer/1144186123) |

## 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


### Prayer Master

[App page](https://appshunter.io/ios/app/prayer-master/id1509338771)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is USB Disk Pro free?

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

### Is Prayer Master free?

Prayer Master is free to download, with no in-app purchases.

### Do USB Disk Pro or Prayer Master have ads?

Neither USB Disk Pro nor Prayer Master shows ads.

### Which is updated more often, USB Disk Pro or Prayer Master?

USB Disk Pro ships an update every 3 months, and Prayer Master every 3 weeks. Most recently, USB Disk Pro was updated on October 13, 2026 and Prayer Master on September 26, 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.*