# J1939OBD vs xHP Flashtool

The clearest difference is in-app purchases: xHP Flashtool at none against J1939OBD's 1. xHP Flashtool also leads on update cadence (weekly vs every 41 months). J1939OBD's advantage is iOS requirement (12.1 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. J1939OBD sells 1 one-off in-app purchase. xHP Flashtool asks for nothing beyond the download.

J1939OBD ships an update every 41 months, xHP Flashtool weekly. The most recent releases landed on September 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | J1939OBD | xHP Flashtool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (2.7K ratings)](https://appshunter.io/ios/app/xhp-flashtool/id1475112461/reviews)** |
| Number of ratings | — | **2.7K** |
| Positive reviews | — | 93.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 41 months | **Weekly** |
| Monetization | — | Paid |
| Size | 14 MB | 277 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [S.Koepge](https://appshunter.io/developer/340731168) | [xAutomotive GmbH](https://appshunter.io/developer/1471996796) |

## What reviewers say

### J1939OBD

[App page](https://appshunter.io/ios/app/j1939obd/id1453435912)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get full access for 1939OBD | $3.99 | one-time |


### xHP Flashtool

[App page](https://appshunter.io/ios/app/xhp-flashtool/id1475112461)

This app offers a complete tuning solution for ZF automatic and DCT transmissions. It allows users to customize their transmission's behavior, from smooth and comfortable to race-ready performance, directly from their Apple devices. Unlock the full potential of your vehicle's transmission.

**Highlights:** ZF transmission tuning, Customizable shift behavior, OTS map selection, DCT transmission support, iOS/iPadOS/Mac M1 compatibility, Multiple adapter options

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Improved performance and responsiveness
- 👍 Easy to use and customize
- 🔧 Excellent customer support
- 💥 Significant driving experience enhancement
- 🏎️ Faster and more responsive shifts

**What reviewers complain about**

- 🐛 Occasional connection issues
- 🔍 Compatibility concerns with newer vehicles
- 💰 Perceived high cost of license

**Reported bugs**

- App crashes during reflash process
- Inability to sign out of account with wrong email

**Requested features**

- Expand compatibility to more vehicle models
- Offer more affordable licensing options
- Implement demo/trial mode for potential users


## Frequently asked questions

### Is J1939OBD free?

J1939OBD is free to download, with in-app purchases available.

### Is xHP Flashtool free?

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

### Do J1939OBD or xHP Flashtool have ads?

Neither J1939OBD nor xHP Flashtool shows ads.

### Which is updated more often, J1939OBD or xHP Flashtool?

J1939OBD ships an update every 41 months, and xHP Flashtool weekly. Most recently, J1939OBD was updated on September 18, 2026 and xHP Flashtool on October 15, 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.*