# OD Link系统 vs 亿充电

The clearest difference is update cadence: OD Link系统 at monthly against 亿充电's every 5 months. OD Link系统 also leads on iOS requirement (13.0 vs 15.6). 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.

OD Link系统 ships an update monthly, 亿充电 every 5 months. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | OD Link系统 | 亿充电 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Size | 55 MB | 17 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ChengLu Education Technology (Hubei) Co., Ltd.](https://appshunter.io/developer/1557843667) | [Guangzhou Yunku Intelligence Equipment Co., Ltd.](https://appshunter.io/developer/1585628722) |

## What reviewers say

### OD Link系统

[App page](https://appshunter.io/ios/app/od-link/id1633922510)

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

**In-app purchases:** none


### 亿充电

[App page](https://appshunter.io/ios/app/id6444307808)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OD Link系统 free?

OD Link系统 is free to download, with no in-app purchases.

### Is 亿充电 free?

亿充电 is free to download, with no in-app purchases.

### Do OD Link系统 or 亿充电 have ads?

Neither OD Link系统 nor 亿充电 shows ads.

### Which is updated more often, OD Link系统 or 亿充电?

OD Link系统 ships an update monthly, and 亿充电 every 5 months. Most recently, OD Link系统 was updated on October 2, 2026 and 亿充电 on October 14, 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.*