# J1939FaultCode vs TruckOBD

The clearest difference is in-app purchases: TruckOBD at none against J1939FaultCode's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. J1939FaultCode sells 1 one-off in-app purchase. TruckOBD asks for nothing beyond the download.

## The numbers

| Metric | J1939FaultCode | TruckOBD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Size | 11 MB | 135 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [洋 刘](https://appshunter.io/developer/6775317751) | [Jason Joon](https://appshunter.io/developer/6790699216) |

## What reviewers say

### J1939FaultCode

[App page](https://appshunter.io/ios/app/j1939faultcode/id6778431735)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| J1939 Pro | $2.99 | one-time |


### TruckOBD

[App page](https://appshunter.io/ios/app/truckobd/id6790699004)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is J1939FaultCode free?

J1939FaultCode is free to download, with in-app purchases available.

### Is TruckOBD free?

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

### Do J1939FaultCode or TruckOBD have ads?

Neither J1939FaultCode nor TruckOBD shows ads.

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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.*