# BestOBD

> BestOBD (iPhone/iPad app by GUOMING YAN.)

- Source: https://appshunter.io/ios/app/bestobd/id6821697161 (this page in markdown: same URL + `.md`)
- Developer: [GUOMING YAN](https://appshunter.io/developer/1818313860)
- Category: Utilities, Navigation
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.2 · 24 MB
- Languages: American English
- Released: 2026-10-13
- Data updated: 2026-10-17

## What is BestOBD?

BestOBD 把 iPhone 變成行車電腦診斷工具。搭配藍牙 LE 或 Wi-Fi 的 ELM327 相容 OBD-II 轉接器，就能讀取車輛即時數據、查看與清除故障碼。

【連線】
• 支援藍牙 4.0（BLE）與 Wi-Fi 轉接器，自動找出可能的 OBD 轉接器並記住上次的裝置
• 連線後自動完成檢查：重設轉接器、讀取電壓、自動偵測車輛協議、讀取支援的數據與車身號碼 VIN
• 「逐一測試 1–9」列出 CAN、ISO 9141-2、KWP2000、J1850 等每種協議的結果
• 沒有轉接器也能用「展示」模式體驗所有功能

【即時數據】
• 轉速、車速儀表與水溫、油量、引擎負載、節氣門、進氣溫度、電壓、空氣流量、油耗
• 列出車輛支援的全部 PID 與即時數值
• 鎖定畫面與動態島 Live Activity，不打開 App 也能看轉速與車速

【故障碼】
• 讀取已儲存、待確認與永久故障碼，顯示系統分類
• 清除故障碼並熄滅故障燈（會先確認）
• 終端機可直接傳送 AT / OBD 指令，查看原始回應

【BestOBD Pro（一次購買，永久解鎖）】
• 故障碼中文說明與可能原因
• 即時曲線圖
• HUD 抬頭顯示（鏡像大字，放在擋風玻璃前）
• 排氣檢驗準備狀態，驗車前先確認
• 行車數據記錄並匯出 CSV
• 移除廣告

【注意】
• 需要另購 ELM327 相容 OBD-II 轉接器。傳統藍牙（SPP）轉接器因 iOS 限制無法連線，請選擇 BLE 或 Wi-Fi 版本。
• 支援 OBD-II 規範車輛，可讀取的數據依車款而異。
• 請勿在行駛中操作手機。數據與說明僅供參考，不能取代專業技師檢修。

隱私權政策：https://bashcat.net/bestobd/privacy

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| BestOBD Pro | $8.99 | one-time |


## Is BestOBD safe?

Not enough ratings yet to assess BestOBD.

## Is BestOBD legit?

BestOBD appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for BestOBD is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0.0 — 2026-10-13

No release notes.

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All apps by GUOMING YAN: https://appshunter.io/developer/1818313860

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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 2026-10-17.*