AutoOBDII vs UJS OBDII
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AutoOBDII
This application connects to your vehicle via Bluetooth to perform diagnostics and offer driving assistance. It can read and clear fault codes, analyze performance, and track your journeys. Supports multiple languages and high-speed data transmission.
- Bluetooth vehicle communication
- Fault code reading and clearing
- Instrument panel monitoring
- Performance testing
- Travel analysis
- High-speed data transmission
- Low power consumption
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AutoOBDII is a car diagnostic and monitoring application,support English,Español,Русский,Deutsch,Français,日本語,中文,Italiano,한국어,Português. Through phone, use Bluetooth to communicate with the vehicle terminal to complete fault diagnosis and driving assistance functions. It has automobile detection and analysis functions such as fault code reading and clearing, instrument panel, performance test, and travel analysis. It also supports high-speed data transmission and has the advantages of low power consumption and ultra-power saving. caution: 1. Support the adapter that runs through Bluetooth 4.0/5.0. 2. The parameters supported by each vehicle are different, which has nothing to do with AutoOBDII, but is related to the vehicle control unit. 3. AutoOBDII supports LONAUTO series products.
UJS OBDII
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.
- 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
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UJS OBD is exclusively designed to support UJS OBDII series products, serving as a professional car diagnostic and real-time monitoring application. It offers multi-language support, including English, Español, Русский, 日本語,and 中文,ensuring seamless usability for users worldwide. By connecting your smartphone to the UJS OBDII vehicle terminal via Bluetooth, the app enables comprehensive vehicle management—covering core functions such as fault code reading & clearing, real-time instrument panel display, vehicle performance testing, and detailed travel 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. Caution: 1. This app only supports adapters compatible with Bluetooth 4.0/5.0. 2. The range of parameters accessible for each vehicle varies and is determined by the vehicle’s own control unit, not by the UJS OBD app. 3. UJS OBD is specifically optimized for use with UJS OBDII series products; compatibility with other devices is not guaranteed.
Screenshots
Verdict
The clearest difference is update cadence: UJS OBDII at every 6 weeks against AutoOBDII's every 4 months. On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 5.0 for AutoOBDII against 5.0 for UJS OBDII. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
AutoOBDII ships an update every 4 months, UJS OBDII every 6 weeks. The most recent releases landed on July 20, 2026 and June 1, 2026 respectively.
| Parameter | AutoOBDII | UJS OBDII |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13 | 13 |
| Further details — not scored | ||
| Size | 83 MB | 81 MB |
| Age rating | 17+ | 4+ |
| Developer | Shenzhen Lonauto Technology Co., Ltd. | UJS INC |
Customer experience
AutoOBDII
UJS OBDII
In-app purchases
AutoOBDII
No in-app purchases
UJS OBDII
No in-app purchases









