# CarCoding vs OpenOBD

The clearest difference is review sentiment: OpenOBD at 100% against CarCoding's 0%. OpenOBD also leads on rating (4.8 vs 1.0) and in-app purchases (none vs 4). CarCoding's advantage is update cadence (every 2 days vs every 5 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CarCoding sells 4 in-app purchases, starting at $7.99 per month. OpenOBD asks for nothing beyond the download.

OpenOBD holds the better App Store score, 4.8 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 0% of CarCoding's written reviews are positive against 100% of OpenOBD's.

CarCoding ships an update every 2 days, OpenOBD every 5 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | CarCoding | OpenOBD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/carcoding-obd2-car-scanner/id6759403080/reviews) | **[4.8 (4 ratings)](https://appshunter.io/ios/app/openobd-obd2-car-scanner/id6780283561/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | Freemium | **Free** |
| Size | 105 MB | 54 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [BUBISOFT YAZILIM TEKNOLOJI ITHALAT IHRACAT SANAYI TICARET LIMITED SIRKETI](https://appshunter.io/developer/1491589580) | [Osman Cengeri](https://appshunter.io/developer/1807592099) |

## What reviewers say

### CarCoding

[App page](https://appshunter.io/ios/app/carcoding-obd2-car-scanner/id6759403080)

This app acts as an OBD2 scanner, providing diagnostics, live data, and ECU coding for your vehicle. It helps you understand check engine lights, clear codes, monitor engine performance, and access hidden car features. Supports ELM327 adapters and offers AI-powered repair assistance.

**Highlights:** OBD2 diagnostics and fault code clearing, AI repair assistant for code explanations, Live engine data with customizable gauges, ECU coding and access to hidden features, Apple CarPlay and Siri integration, Vehicle compatibility checks

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CarCoding Pro Monthly | $7.99 | per month |
| CarCoding Pro 6 Months | $39.95 | per 6 months |
| CarCoding Pro Annual | $71.90 | per year |
| CarCoding Pro – Lifetime | $71.99 | one-time |


### OpenOBD

[App page](https://appshunter.io/ios/app/openobd-obd2-car-scanner/id6780283561)

Transform your iPhone into a real-time car dashboard. Connect an OBD2 adapter to monitor live engine data, track your trips with GPS, and diagnose fault codes with clear explanations. Explore all features in demo mode without hardware.

**Highlights:** Live engine data monitoring, Real-time speed, RPM, temperature gauges, Trip logging with GPS mapping, Read and clear diagnostic trouble codes (DTCs), Vehicle information display, Demo mode for exploration

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

**In-app purchases:** none


## Frequently asked questions

### Is CarCoding free?

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

### Is OpenOBD free?

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

### Which has better reviews, CarCoding or OpenOBD?

OpenOBD is rated higher. CarCoding averages 1.0 out of 5 from 1 ratings, while OpenOBD averages 4.8 from 4 ratings.

### Do CarCoding or OpenOBD have ads?

Neither CarCoding nor OpenOBD shows ads.

### Which is updated more often, CarCoding or OpenOBD?

CarCoding ships an update every 2 days, and OpenOBD every 5 days. Most recently, CarCoding was updated on October 28, 2026 and OpenOBD on October 28, 2026.

---

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