# OBDMap vs CodeMaster4

The clearest difference is update cadence: CodeMaster4 at fortnightly against OBDMap's every 2 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.

OBDMap ships an update every 2 months, CodeMaster4 fortnightly. The most recent releases landed on September 23, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | OBDMap | CodeMaster4 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 70 MB | 203 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chiptronic Eletronica do Brasil Ltda](https://appshunter.io/developer/1098176482) | [Redt Inc.](https://appshunter.io/developer/1535567812) |

## What reviewers say

### OBDMap

[App page](https://appshunter.io/ios/app/obdmap/id1179489593)

This professional automotive tool offers comprehensive solutions for immobilizer systems, enabling key and remote programming, password reading, and module matching. It's designed for automotive professionals, from beginners to experts, providing quick and secure services for a wide range of vehicles.

**Highlights:** Automotive key coding, Immobilizer solutions, Key and remote programming, Password reading, Module matching, Intuitive interface, Expandable memory

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

**In-app purchases:** none


### CodeMaster4

[App page](https://appshunter.io/ios/app/codemaster4/id6741621289)

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

**In-app purchases:** none


## Frequently asked questions

### Is OBDMap free?

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

### Is CodeMaster4 free?

CodeMaster4 is free to download, with no in-app purchases.

### Do OBDMap or CodeMaster4 have ads?

Neither OBDMap nor CodeMaster4 shows ads.

### Which is updated more often, OBDMap or CodeMaster4?

OBDMap ships an update every 2 months, and CodeMaster4 fortnightly. Most recently, OBDMap was updated on September 23, 2026 and CodeMaster4 on October 22, 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.*