# YinJi CA vs OTG Driver

The clearest difference is update cadence: OTG Driver at every 10 days against YinJi CA's every 19 months. OTG Driver also leads on iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

YinJi CA ships an update every 19 months, OTG Driver every 10 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | YinJi CA | OTG Driver |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 10 days** |
| Size | 147 MB | 53 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Snappy Innovation Inc.](https://appshunter.io/developer/1124557992) | [Johny Chen](https://appshunter.io/developer/1838087178) |

## What reviewers say

### YinJi CA

[App page](https://appshunter.io/ios/app/yinji-ca/id6741873508)

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

**In-app purchases:** none


### OTG Driver

[App page](https://appshunter.io/ios/app/otg-driver/id6752113308)

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

**In-app purchases:** none


## Frequently asked questions

### Is YinJi CA free?

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

### Is OTG Driver free?

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

### Do YinJi CA or OTG Driver have ads?

Neither YinJi CA nor OTG Driver shows ads.

### Which is updated more often, YinJi CA or OTG Driver?

YinJi CA ships an update every 19 months, and OTG Driver every 10 days. Most recently, YinJi CA was updated on October 25, 2026 and OTG Driver on October 28, 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.*