# OBDGO PRO vs UJS OBDII

The clearest difference is rating: UJS OBDII at 5.0 against OBDGO PRO's 4.5. UJS OBDII also leads on review sentiment (100% vs 69%). OBDGO PRO's advantage is ratings volume (31 vs 1) and iOS requirement (11.0 vs 13). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UJS OBDII holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: OBDGO PRO has 31 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 69% of OBDGO PRO's written reviews are positive against 100% of UJS OBDII's.

OBDGO PRO ships an update every 2 months, UJS OBDII every 6 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | OBDGO PRO | UJS OBDII |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (31 ratings)](https://appshunter.io/ios/app/obdgo-pro/id1593164986/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ujs-obdii/id6753165961/reviews)** |
| Number of ratings | **31** | 1 |
| Positive reviews | 69.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 137 MB | 81 MB |
| Requires iOS | **11.0** | 13 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [OBD GO TECH CO LTD](https://appshunter.io/developer/1627457928) | [UJS INC](https://appshunter.io/developer/1842801577) |

## What reviewers say

### OBDGO PRO

[App page](https://appshunter.io/ios/app/obdgo-pro/id1593164986)

Unlock hidden vehicle features and perform OBD-II diagnostics with this app. It allows you to activate functionalities like wireless CarPlay, disable start-stop systems, and scan/clear trouble codes. Generate detailed diagnostic reports to understand and repair your car.

**Highlights:** Unlock hidden vehicle features, OBD-II code scanning and clearing, Generate and share diagnosis reports, Activate wireless CarPlay, Disable start-stop systems, View freeze frame data, Interactive data stream graphing

**Features:** macOS Compatibility

**In-app purchases:** none


### UJS OBDII

[App page](https://appshunter.io/ios/app/ujs-obdii/id6753165961)

This professional car diagnostic app connects to UJS OBDII devices via Bluetooth to read and clear fault codes, monitor real-time vehicle performance, and analyze travel data. It supports multiple languages and offers high-speed, low-power data transmission.

**Highlights:** Fault code reading and clearing, Real-time instrument panel display, Vehicle performance testing, Detailed travel analysis, Multi-language support, High-speed data transmission, Low-power consumption

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OBDGO PRO free?

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

### Is UJS OBDII free?

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

### Which has better reviews, OBDGO PRO or UJS OBDII?

UJS OBDII is rated higher. OBDGO PRO averages 4.5 out of 5 from 31 ratings, while UJS OBDII averages 5.0 from 1 ratings.

### Do OBDGO PRO or UJS OBDII have ads?

Neither OBDGO PRO nor UJS OBDII shows ads.

### Which is updated more often, OBDGO PRO or UJS OBDII?

OBDGO PRO ships an update every 2 months, and UJS OBDII every 6 weeks. Most recently, OBDGO PRO was updated on October 24, 2026 and UJS OBDII on October 24, 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.*