# DFirstCoder

> OBDII scanner app for vehicle diagnostics and customization with one-click features. (iPhone/iPad app by Shenzhen Qixin Technology Co.,Ltd..)

- Source: https://appshunter.io/ios/app/dfirstcoder/id1637894055 (this page in markdown: same URL + `.md`)
- Developer: [Shenzhen Qixin Technology Co.,Ltd.](https://appshunter.io/developer/1637894777)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 4.80/5 from 5 App Store ratings · 3 written reviews indexed
- Age rating: 17+
- Requires: iOS 13.0 · 94 MB
- Languages: English, Chinese
- Released: 2024-06-15
- Data updated: 2026-08-14
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/dfirstcoder/id1637894055/reviews.md

## What is DFirstCoder?

DFirstCoder is an equipped with one-click apps feature professional OBDII Scanner App, designed for vehicle users who want to go beyond straightforward diagnostics. It includes comprehensive diagnostic features and customize numerous features of your vehicles with one-click, friendly to use even for beginners.


Features:
1.2 in 1 OBDII coder. In addition to comprehensive diagnostic, one-click apps eliminate the need for tedious operation steps, making them easy to understand and operate, even for beginners.
2.Hot update. Updating the features or fixing bugs immediately without needing to update the app, it can respond to users needs and resolve functionality issue quickly.
3.Bluetooth connectivity, DFirstCoder's device supports wireless connection to your phone or tablet , and communicate with your vehicles rapidly.
4.Read & Clear codes, read the trouble codes of your vehicle and clear it.
5.Smog check.
6.MIL status.
7.Live data.
8.Freeze frame.
9.Mode 6
10.Covering a wide range of models, VAG Group, BMW Group, Mercedes-Benz, etc. are available.


About DFirstCoder Information

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DFirstCoder is an app to adapt DFirst device, owner of Shenzhen QIXIN Technology Co., LTD. It’s equipped with one-click apps and comprehensive diagnostic features. The app is free to download for user, and some of functions are free to use (e.g. clear temporary trouble codes,date-time synchronization and host reboot etc.).


For more details, welcome to follow us,
Website:www.dfirstcoder.com
Facebook:https://www.facebook.com/qixinglobal
Email: support@dfirstcoder.com

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- One-click apps for easy operation
- Comprehensive diagnostic features
- Bluetooth wireless connectivity
- Read and clear trouble codes
- Smog check functionality
- Live data display
- Supports VAG, BMW, Mercedes-Benz models

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Plan Subscription (Family) | $158.99 | per year |
| Pro Plan Subscription | $108.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 700 QD | $9.95 | one-time |
| 1400 QD | $19.49 | one-time |
| 7000 QD | $96.99 | one-time |
| 3500 QD | $49.99 | one-time |
| 10500 QD | $145.99 | one-time |
| 350 QD | $4.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/dfirstcoder/id1637894055/reviews.md

### 1/5 — Не работает

*2026-06-29*

Не работает в России. Зря отданные деньги за кодер. За несколько месяцев разработчик не предпринял никаких решений для исправления ситуации.

### 5/5 — Работает с разными марками авто.

*2026-03-12*

Очень удобное приложение 

Это устройство Dfirst 201 BT (в народе «китайский свисток») подключается к машине и через
приложение в телефоне. Он объединяет в себе как базовую диагностику (чтение и
очистка ошибок), так и продвинутые возможности кодирования (одним кликом).
Например: отключить «СТАРТ-СТОП», русифицировать приборную панель и
др.50 функций. Интегрирована удобная SFD разблокировка; Привязка АКБ при
замене; Проверка всех блоков в системе по реальному пробегу в км.

### 5/5 — Best coding app for bmw

*2025-02-25*

2021 3series,the app works great for me

## Frequently asked questions about DFirstCoder

### What is DFirstCoder?

DFirstCoder is a professional OBDII scanner app designed for vehicle users. It offers comprehensive diagnostic features and allows for customization of numerous vehicle features with one-click operations, making it user-friendly for beginners.

### Does DFirstCoder have ads?

No, DFirstCoder does not contain advertisements. The app is free to download and offers some functions for free use.

### What vehicles does DFirstCoder support?

DFirstCoder covers a wide range of models, including those from the VAG Group, BMW Group, and Mercedes-Benz. It is designed to communicate rapidly with your vehicles via Bluetooth.

### How does DFirstCoder update its features?

DFirstCoder uses a hot update feature. This allows for updating features or fixing bugs immediately without needing to update the entire app, ensuring quick responses to user needs and functionality issues.

### What are the basic diagnostic functions of DFirstCoder?

Basic functions include reading and clearing trouble codes, performing smog checks, viewing MIL status, displaying live data, and accessing freeze frame and Mode 6 information.

### Is DFirstCoder compatible with iPhones?

Yes, DFirstCoder is supported on iPhones and iPods. It connects wirelessly to your phone or tablet via Bluetooth.

### What is the age rating for DFirstCoder?

DFirstCoder has an age rating of 17+. This is likely due to the technical nature of vehicle diagnostics and coding features.

### When was DFirstCoder last updated?

The latest version of DFirstCoder is 1.6.3, and it was last updated on April 23, 2026. This indicates a recent and active development cycle.

## Version history (last 5 releases)

### 1.6.7 — 2026-08-13

1. Fix known issues
2. Optimize user experience

### 1.6.6 — 2026-08-01

1. Fix known issues
2. Optimize user experience

### 1.6.5 — 2026-07-05

1. Optimize user experience

### 1.6.4 — 2026-06-17

1. Subscription purchase is supported.
2. Optimize user experience

### 1.6.3 — 2026-04-23

1.Optimize app processes and improve user experience

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## Related topics

[dfirstcoder](https://appshunter.io/ios/topics/dfirstcoder)

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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 2026-08-14.*