# OTG Flash Pro vs USBZile

OTG Flash Pro and USBZile are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OTG Flash Pro ships an update every 10 days, USBZile fortnightly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | OTG Flash Pro | USBZile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (5 ratings)](https://appshunter.io/ios/app/usbzile/id6760566368/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | — | Free |
| Size | 136 MB | 1 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [裕雨 程](https://appshunter.io/developer/1079877476) | [EliteScripts LLC.](https://appshunter.io/developer/1885022330) |

## What reviewers say

### OTG Flash Pro

[App page](https://appshunter.io/ios/app/otg-flash-pro/id6752880818)

**In-app purchases:** none


### USBZile

[App page](https://appshunter.io/ios/app/usbzile/id6760566368)

This utility allows you to extract ISO images directly to a USB drive or a local folder on your iPhone or iPad. It supports creating bootable installation media for various operating systems and enables browsing or archiving ISO contents.

**Highlights:** Extract ISO to USB drive, Create bootable installation media, Extract ISO to local folder, Supports Windows and Linux ISOs, High-performance extraction engine, Screen stays on during extraction

**In-app purchases:** none


## Frequently asked questions

### Is OTG Flash Pro free?

OTG Flash Pro is free to download, with no in-app purchases.

### Is USBZile free?

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

### Do OTG Flash Pro or USBZile have ads?

Neither OTG Flash Pro nor USBZile shows ads.

### Which is updated more often, OTG Flash Pro or USBZile?

OTG Flash Pro ships an update every 10 days, and USBZile fortnightly. Most recently, OTG Flash Pro was updated on October 28, 2026 and USBZile 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.*