# OTG Flash Pro vs O2G.SSD

The clearest difference is device support: OTG Flash Pro at 3 against O2G.SSD's 1. OTG Flash Pro also leads on iOS requirement (14.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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, O2G.SSD every 2 weeks. The most recent releases landed on October 28, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | OTG Flash Pro | O2G.SSD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Size | 136 MB | 8 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [裕雨 程](https://appshunter.io/developer/1079877476) | [Huizhou Yayu Technology Service Co., Ltd.](https://appshunter.io/developer/6780226099) |

## What reviewers say

### OTG Flash Pro

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

**In-app purchases:** none


### O2G.SSD

[App page](https://appshunter.io/ios/app/o2gssd/id6784486226)

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

**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 O2G.SSD free?

O2G.SSD is free to download, with no in-app purchases.

### Do OTG Flash Pro or O2G.SSD have ads?

Neither OTG Flash Pro nor O2G.SSD shows ads.

### Which is updated more often, OTG Flash Pro or O2G.SSD?

OTG Flash Pro ships an update every 10 days, and O2G.SSD every 2 weeks. Most recently, OTG Flash Pro was updated on October 28, 2026 and O2G.SSD on October 12, 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.*