# CarCoding vs UJS OBD Pro

The clearest difference is in-app purchases: UJS OBD Pro at none against CarCoding's 4. UJS OBD Pro also leads on iOS requirement (13 vs 15.1). CarCoding's advantage is update cadence (every 2 days vs every 5 weeks). On price, ads and device support there is nothing between them.

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

CarCoding ships an update every 2 days, UJS OBD Pro every 5 weeks. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CarCoding | UJS OBD Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/carcoding-obd2-car-scanner/id6759403080/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 weeks |
| Monetization | Freemium | — |
| Size | 106 MB | 148 MB |
| Requires iOS | 15.1 | **13** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [BUBISOFT YAZILIM TEKNOLOJI ITHALAT IHRACAT SANAYI TICARET LIMITED SIRKETI](https://appshunter.io/developer/1491589580) | [UJS INC](https://appshunter.io/developer/1842801577) |

## What reviewers say

### CarCoding

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

Diagnose vehicle faults, read and clear trouble codes, and unlock hidden features using your smartphone and an OBD2 scanner. Monitor live engine data, perform service resets, and even code ECUs on supported car models.

**Highlights:** Read and clear fault codes (DTC), Live engine data and gauges, AI fault analysis, Service resets (oil, EPB, DPF), ECU coding and hidden features, Used car inspection readiness

**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 |


### UJS OBD Pro

[App page](https://appshunter.io/ios/app/ujs-obd-pro/id6761961923)

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

**In-app purchases:** none


## Frequently asked questions

### Is CarCoding free?

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

### Is UJS OBD Pro free?

UJS OBD Pro is free to download, with no in-app purchases.

### Do CarCoding or UJS OBD Pro have ads?

Neither CarCoding nor UJS OBD Pro shows ads.

### Which is updated more often, CarCoding or UJS OBD Pro?

CarCoding ships an update every 2 days, and UJS OBD Pro every 5 weeks. Most recently, CarCoding was updated on October 31, 2026 and UJS OBD Pro on October 28, 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.*