# J1939OBD vs matecode

The clearest difference is in-app purchases: matecode at none against J1939OBD's 1. matecode also leads on update cadence (every 3 weeks vs every 41 months). J1939OBD's advantage is iOS requirement (12.1 vs 14.0). On price, ads and device support there is nothing between them.

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

J1939OBD ships an update every 41 months, matecode every 3 weeks. The most recent releases landed on September 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | J1939OBD | matecode |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 3 weeks** |
| Size | 14 MB | 80 MB |
| Requires iOS | **12.1** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [S.Koepge](https://appshunter.io/developer/340731168) | [Irdeto Security BV](https://appshunter.io/developer/1548523486) |

## 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 |


### matecode

[App page](https://appshunter.io/ios/app/matecode/id6575368048)

**In-app purchases:** none


## Frequently asked questions

### Is J1939OBD free?

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

### Is matecode free?

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

### Do J1939OBD or matecode have ads?

Neither J1939OBD nor matecode shows ads.

### Which is updated more often, J1939OBD or matecode?

J1939OBD ships an update every 41 months, and matecode every 3 weeks. Most recently, J1939OBD was updated on September 18, 2026 and matecode on October 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*