# IDOBlueTool vs KD DFU

The clearest difference is update cadence: IDOBlueTool at every 3 weeks against KD DFU's every 2 months. IDOBlueTool also leads on iOS requirement (9.0 vs 12.0). 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.

IDOBlueTool ships an update every 3 weeks, KD DFU every 2 months. The most recent releases landed on October 9, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | IDOBlueTool | KD DFU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 21 MB | 26 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen DO Intelligent Technology Co., Ltd.](https://appshunter.io/developer/983169809) | [Guangzhou Kuodao Internet of Things Technology Co., Ltd.](https://appshunter.io/developer/1196125665) |

## What reviewers say

### IDOBlueTool

[App page](https://appshunter.io/ios/app/idobluetool/id1475057794)

**In-app purchases:** none


### KD DFU

[App page](https://appshunter.io/ios/app/kd-dfu/id1571856283)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IDOBlueTool free?

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

### Is KD DFU free?

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

### Do IDOBlueTool or KD DFU have ads?

Neither IDOBlueTool nor KD DFU shows ads.

### Which is updated more often, IDOBlueTool or KD DFU?

IDOBlueTool ships an update every 3 weeks, and KD DFU every 2 months. Most recently, IDOBlueTool was updated on October 9, 2026 and KD DFU 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.*