# DFU Plus vs OBDII Scanner

The clearest difference is update cadence: OBDII Scanner at every 4 weeks against DFU Plus's every 6 months. 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.

DFU Plus ships an update every 6 months, OBDII Scanner every 4 weeks. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | DFU Plus | OBDII Scanner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 weeks** |
| Size | 9 MB | 113 MB |
| Requires iOS | 13.0 | 13 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Lanke Xuntong Technology Co., Ltd.](https://appshunter.io/developer/640898259) | [JDiag Electronics Technology Co., Ltd](https://appshunter.io/developer/1298431912) |

## What reviewers say

### DFU Plus

[App page](https://appshunter.io/ios/app/dfu-plus/id1535944293)

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

**In-app purchases:** none


### OBDII Scanner

[App page](https://appshunter.io/ios/app/obdii-scanner/id6754549867)

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

**In-app purchases:** none


## Frequently asked questions

### Is DFU Plus free?

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

### Is OBDII Scanner free?

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

### Do DFU Plus or OBDII Scanner have ads?

Neither DFU Plus nor OBDII Scanner shows ads.

### Which is updated more often, DFU Plus or OBDII Scanner?

DFU Plus ships an update every 6 months, and OBDII Scanner every 4 weeks. Most recently, DFU Plus was updated on November 3, 2026 and OBDII Scanner 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.*