# Diagnosis — OBD Diagnostic

> OBD Diagnostic (iPhone/iPad app by Shenzhen Yunjia Intelligence Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/diagnosis/id1517729194 (this page in markdown: same URL + `.md`)
- Developer: [Shenzhen Yunjia Intelligence Technology Co., Ltd.](https://appshunter.io/developer/528881861)
- Category: Utilities, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 8.0 · 550 MB
- Languages: English
- Released: 2020-07-28
- Data updated: 2026-05-18
- User reviews in markdown: https://appshunter.io/ios/app/diagnosis/id1517729194/reviews.md

## What is Diagnosis?

Diagnosis is a smart diagnostic system on demand working with iPhone or iPad. It combines vast vehicle coverage, strong diagnostic functions and many special functions.
It has following features:
1. Comprehensive vehicle coverage, covers most American, Asian, European and Australian cars.
2. Full system diagnosis, with many special functions available based on users' needs. 
3. Small and easily portable.
4. Bluetooth wireless connection.


## Version history (last 5 releases)

### 3.6 — 2023-04-15

Fix known issues

### 3.5 — 2023-04-12

Update vehicles diagnostic software

### 3.4 — 2023-02-09

Update vehicles diagnostic software

### 3.3 — 2023-01-07

Update vehicles diagnostic software

### 3.2 — 2022-12-05

Update vehicles diagnostic software

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| [ShiftLight OBD2](https://appshunter.io/ios/app/shiftlight-obd2/id6471374380) | — | Free | Utilities |
| [EIP-CW59-C](https://appshunter.io/ios/app/eip-cw59-c/id6450641610) | — | Free | Utilities |

## More apps by Shenzhen Yunjia Intelligence Technology Co., Ltd.

- [iOBD2](https://appshunter.io/ios/app/iobd2/id528881858)
- [iOBD2-DTC](https://appshunter.io/ios/app/iobd2-dtc/id710380105)
- [iOBD2-VW/AUDI](https://appshunter.io/ios/app/iobd2-vwaudi/id725357587)
- [AIOBD13](https://appshunter.io/ios/app/aiobd13/id958457297)
- [X100C](https://appshunter.io/ios/app/x100c/id1149172812)
- [X100D](https://appshunter.io/ios/app/x100d/id1164397066)

All apps by Shenzhen Yunjia Intelligence Technology Co., Ltd.: https://appshunter.io/developer/528881861

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*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 2026-05-18.*