# iSmartDiag — automotive diagnosis > Automotive diagnostic tool for comprehensive vehicle scanning and fault code management. (iPhone/iPad app by Shenzhen Vident Technology Co., Ltd.) - Source: https://appshunter.io/ios/app/ismartdiag/id1669179670 (this page in markdown: same URL + `.md`) - Developer: [Shenzhen Vident Technology Co., Ltd](https://appshunter.io/developer/1661505875) - Category: Utilities - Price: Free - Rating: 1.00/5 from 1 App Store ratings · 3 written reviews indexed - Age rating: 9+ - Requires: iOS 15.5 · 606 MB - Languages: American English, Arabic, Danish, Dutch, Finnish, French (France), German (Germany), Hungarian, Italian, Japanese and 11 more - Released: 2023-05-17 - Data updated: 2026-08-23 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/ismartdiag/id1669179670/reviews.md ## What is iSmartDiag? According to connect with mobile or tablet bluetooth, the iSmartDiag can work on vehicles properly and provide powerful diagnostic functions to mechanics. In addition, the iSmartDiag can help drivers, DIYers and workshops save plenty of time and costs. Main Features: 1. 110+ vehicle brands coverage with full system scan & diagnosis 2. Support latest CANFD& DoIP communication protocols diagnosis 3. Bi-directional control and easy pin-point faults 4. Support full system scan & diagnosis: engine, transmission, SRS, TPMS, ABS, ESP, IMMO and etc. 5. Full system basic diagnostic functions including read/erase fault code, read system information, freeze frame data, read data stream, active tests. 6. iSmartDiag510 covered 13 maintenance functions; iSmartDiag510Pro covered 28 maintenance function, like service reset, EPB, DPF, injector coding etc. 7. Data stream graph display and comparison 8. Support fault code emailing function to certain email address(This function is used to send diagnostic report email to drivers by workshop), diagnostic report and vehicle quick scan report. 9. Bluetooth connection based on mobile devices, efficiency connection distance within 10 meters. 10. Support one-touch diagnostic complaint. Welcome to the forefront of automotive diagnostic technology. Vident Tech offers state-of-the-art solutions based on OBD and OBDII. We are on par with renowned brands like Autel, Xtool, and Launch, providing you with accurate and reliable results for mileage checking, emission status, and engine diagnostics. Vident Tech aimed to deliver the best diagnostic solutions for mechanics. Whether it's routine maintenance or emergency situations, with outstanding performance and user-friendly interfaces, Vident products can help you quickly identify issues. Our advanced diagnostic tool, the iSmart Diag application, allows you to effortlessly access to vehicle data and generate comprehensive reports. Whether it's reading mileage, evaluating emissions, or diagnosing engine issues, iSmart Diag can meet your needs. By choosing Vident Tech, you'll receive dependable and precise solutions that enhance your driving experience. Don't missing the opportunity to experience Vident Tech's advanced diagnostic technology. We are your trusted partner in the field of automotive diagnostics. Let's explore the convenient features of iSmart Diag together and effortlessly resolve your car repair issues. Download the iSmart Diag application now and revolutionize the way you maintain and repair your car. iSmart Diag is an intelligent automotive diagnostic application that helps you monitor and address car problems in real-time, optimizing your driving experience. It offers comprehensive and accurate diagnostic functions, including reading and clearing fault codes, monitoring sensor data, and active tests. With precise diagnostic results, help to better understand vehicle status and take timely maintenance measures to avoid potential failures. It can monitor various parameters of your vehicle in real-time, such as speed, fuel consumption, assisting you in gaining a comprehensive understanding of your vehicle. Additionally, it provides real-time data charts and reports, enabling you to analyze your vehicle's operating conditions more clearly. The iSmart Diag interface is designed to be simple and intuitive, ensuring ease and convenience of operation. Which allows entry level users to perform automotive diagnostics and troubleshooting. Whether you're an automotive enthusiasts or drivers, you can easily get started with it. Vident Tech team will continuously updates and optimizes the application's features to provide better user experience and functional support. Additionally, we offer timely technical support and online help documentation to ensure that you receive the necessary assistance and guidance while using iSmart Diag. ## Key features - 110+ vehicle brands coverage - Full system scan & diagnosis - Bi-directional control - Read/erase fault codes - Maintenance functions - Data stream graph display - Bluetooth connectivity ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/ismartdiag/id1669179670/reviews.md ### 5/5 — Good *2024-09-10* Good ### 1/5 — Keeps crashing *2024-07-31* I bought this and immediately registered it and updated all makes. Went to use it a week later and it says everything is invalid and I need to delete and try and redownload the app to fix it. Junk ### 2/5 — Needs registered before use! *2024-06-18* 2 stars because it needs to be registered and signed in before use! Not all OBD bt dongles are compatible? Other than that, one can not tryout, review and rate a product! ## Frequently asked questions about iSmartDiag ### What vehicles does iSmartDiag support? iSmartDiag offers coverage for over 110 vehicle brands, supporting full system scans and diagnosis. It is compatible with the latest CANFD and DoIP communication protocols. ### How does iSmartDiag connect to a vehicle? The application connects to your mobile device via Bluetooth, with an efficient connection distance of up to 10 meters. This allows for wireless diagnostic operations. ### What diagnostic functions are available with iSmartDiag? Key functions include reading and erasing fault codes, reading system information, viewing freeze frame data, reading data streams, and performing active tests across various vehicle systems like engine, transmission, and ABS. ### Does iSmartDiag offer maintenance functions? Yes, iSmartDiag provides various maintenance functions. The iSmartDiag510 covers 13 functions, while the iSmartDiag510Pro includes 28, such as service reset and injector coding. ### Can iSmartDiag generate diagnostic reports? Yes, iSmartDiag supports a fault code emailing function to send diagnostic reports and vehicle quick scan reports to specified email addresses, useful for workshops. ### Is iSmartDiag available on multiple platforms? Based on the provided data, iSmartDiag is supported on iPhone, iPad, and iPod devices, indicating iOS compatibility. ### How often is iSmartDiag updated? The latest version available is 5.86, and the last update was on March 19, 2026. This suggests a regular update schedule, though the exact frequency is not specified. ### What is the user sentiment for iSmartDiag? Currently, iSmartDiag has a rating of 1.0 stars from 1 rating. This indicates a very limited user base and potentially negative initial feedback that requires further investigation. ## Version history (last 5 releases) ### 6.06 — 2026-08-22 Fix known bugs. ### 6.05 — 2026-08-20 Fix known bugs. ### 6.04 — 2026-08-17 Fix known bugs. ### 6.03 — 2026-08-13 Fix known bugs. ### 6.02 — 2026-08-07 Fix known bugs. ## Apps similar to iSmartDiag | App | Rating | Price | Category | | --- | --- | --- | --- | | [Car Scanner ELM OBD2](https://appshunter.io/ios/app/car-scanner-elm-obd2/id1259933623) | 4.8 (31,859) | Free | Utilities | | [Automend Pro OBD 2 Car Scanner](https://appshunter.io/ios/app/automend-pro-obd-2-car-scanner/id1479656629) | 3.2 (31) | Free | Utilities | | [OBD2 Car Scanner - EOBD Facile](https://appshunter.io/ios/app/obd2-car-scanner-eobd-facile/id713921569) | 4.6 (4,999) | Free | Utilities | | [Engine Link - OBD II diagnosis](https://appshunter.io/ios/app/engine-link-obd-ii-diagnosis/id591557194) | 2.9 (62) | $5.99 | Utilities | | [ThinkDiag+](https://appshunter.io/ios/app/thinkdiag-plus/id1483420979) | 4.5 (4,267) | Free | Utilities | | [SMARTOBD2](https://appshunter.io/ios/app/smartobd2/id6476199101) | 5.0 (4) | Free | Utilities | ## More apps by Shenzhen Vident Technology Co., Ltd - [iSmart500Max](https://appshunter.io/ios/app/ismart500max/id6749934173) All apps by Shenzhen Vident Technology Co., Ltd: https://appshunter.io/developer/1661505875 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*