# KD DFU vs bCheck

The clearest difference is iOS requirement: KD DFU at 12.0 against bCheck's 15.6. 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.

KD DFU ships an update every 2 months, bCheck monthly. The most recent releases landed on September 26, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | KD DFU | bCheck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 26 MB | 4 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Kuodao Internet of Things Technology Co., Ltd.](https://appshunter.io/developer/1196125665) | [晓斌 刘](https://appshunter.io/developer/1803353457) |

## What reviewers say

### KD DFU

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

**Features:** macOS Compatibility

**In-app purchases:** none


### bCheck

[App page](https://appshunter.io/ios/app/bcheck/id6744667971)

**In-app purchases:** none


## Frequently asked questions

### Is KD DFU free?

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

### Is bCheck free?

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

### Do KD DFU or bCheck have ads?

Neither KD DFU nor bCheck shows ads.

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

KD DFU ships an update every 2 months, and bCheck monthly. Most recently, KD DFU was updated on September 26, 2026 and bCheck on September 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.*