Autmet | OBD2 Scanner vs UJS OBD Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Autmet | OBD2 Scanner
This diagnostic tool connects to your vehicle's OBD data via a Bluetooth device. It allows you to read various ECU data and supports common OBD-II protocols.
- Reads vehicle ECU data
- Bluetooth OBD device compatible
- Supports OBD-II protocols
- Diagnostic tool
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Autmet puts the core of a professional scan tool in your pocket. Connect an OBD-II adapter, read the codes your car has already recorded, and get a plain-language answer: what it means, what likely caused it, and whether it's safe to keep driving. ■ Read and clear trouble codes Read stored, pending and permanent trouble codes. Clear them and turn off the check engine light in one tap. Works on US vehicles from 1996, European petrol from 2001 and diesel from 2004 — if it has an OBD-II port, it works. ■ 11,000+ trouble codes, 100,000+ explanations Not a bare code-to-text lookup. Our database holds over 11,000 distinct trouble codes and more than 104,000 explanations across 62 brands — Toyota, Volkswagen, BMW, Mercedes-Benz, Ford, Chevrolet, Honda, Nissan, Hyundai, Peugeot, Renault, Porsche and more. The same P0301 can mean different things on different vehicles, so we index by brand, model, year and engine. You get the explanation for your car, not a generic template. ■ AI insight: causes and consequences, not just codes Every code comes with a readable explanation of likely causes and the real risk of continuing to drive. Codes are grouped automatically by powertrain, chassis, body and network, so you see at a glance where the problem sits. Generate a full diagnostic report to save or send to your mechanic — walk in informed. ■ Live data RPM, speed, coolant temperature, intake pressure, oxygen sensors, fuel trim and more, on customisable gauges and graphs. Switch metric/imperial in one tap (km/h ↔ mph, °C ↔ °F, kPa ↔ psi). The whole page refreshes together, so every value comes from the same moment. ■ Check emissions readiness before the test Confirm every readiness monitor is set before you drive to the inspection station — and save yourself a wasted trip. ■ Freeze frame and Mode 6 A snapshot of exactly what the engine was doing when the fault occurred, plus on-board monitor results with test limits for oxygen sensors, catalyst and more — so you can tell "already failed" from "about to fail". ■ Vehicle info and multi-car garage Reads your VIN automatically to identify the vehicle. Keep every car in the household in its own profile, each with its own diagnostic history. ■ Six languages English, 简体中文, Deutsch, Español, Français, Italiano — the interface and all 100,000+ code explanations are fully localised, not partial machine output. — What you need — An ELM327-compatible OBD-II Bluetooth adapter (such as VEEPEAK), sold separately. Plug it into the port under your dashboard and pair.
UJS OBD Pro
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UJS OBD Pro is exclusively designed to support UJS ROCCO Pro, serving as a professional car diagnostic and real-time monitoring application. It supports full OBDIl/EOBD standard protocols and multi-system diagnostics for ABS, Engine, Transmission and Airbag (SRS). Connect your smartphone to the UJS OBD Pro device to unlock comprehensive vehicle management. Enjoy key features including fault code reading and clearing, real-time data monitoring, performance testing, deep system scanning, AI-powered insights, customizable reports, and detailed trip analysis. It also features high-speed data transmission capabilities, paired with outstanding low-power consumption and ultra-energy-saving performance, ensuring long-lasting use without excessive battery drain. Drivers' safety and customer satisfaction are our top priorities. That's why we offer our products at an affordable price with no subscriptions and no hidden costs—ever. Every UJS diagnostic tool includes lifetime free updates and ongoing technical support, ensuring your device stays accurate and reliable for years to come. UJS OBD Pro offers multi-language support, including English, Español, Русский, 日本語,and 中文,ensuring seamless usability for users worldwide. Caution: 1. This app only supports adapters compatible with Bluetooth 5.1. 2. Available parameters may vary depending on your vehicle, as they are defined by the vehicle’s control unit rather than the UJS OBD app. 3. UJS OBD Pro is specifically optimized for use with UJS series products (UJS ROCCO Pro); compatibility with other devices is not guaranteed.
Screenshots
Verdict
The clearest difference is update cadence: Autmet | OBD2 Scanner at every 9 days against UJS OBD Pro's every 5 weeks. UJS OBD Pro's advantage is iOS requirement (13 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Autmet | OBD2 Scanner ships an update every 9 days, UJS OBD Pro every 5 weeks. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.
| Parameter | Autmet | OBD2 Scanner | UJS OBD Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 13 — better |
| Further details — not scored | ||
| Size | 50 MB | 148 MB |
| Age rating | 4+ | 4+ |
| Developer | SPIRESH TECH INC. | UJS INC |
In-app purchases
Autmet | OBD2 Scanner
No in-app purchases
UJS OBD Pro
No in-app purchases
Questions
Is Autmet | OBD2 Scanner free?
Is UJS OBD Pro free?
Do Autmet | OBD2 Scanner or UJS OBD Pro have ads?
Which is updated more often, Autmet | OBD2 Scanner or UJS OBD Pro?
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