# ScanMaster for ELM327 OBD-2

> Vehicle diagnostics app communicating with ELM327 OBD2 car interfaces. (iPhone/iPad app by SMART Technologies GmBH.)

- Source: https://appshunter.io/ios/app/scanmaster-for-elm327-obd-2/id1323914943 (this page in markdown: same URL + `.md`)
- Developer: [SMART Technologies GmBH](https://appshunter.io/developer/1320748539)
- Category: Business, Utilities
- Price: $4.99
- Rating: 4.00/5 from 154 App Store ratings · 101 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 4 MB
- Languages: Russian, Hindi, Vietnamese, American English, Arabic, Hungarian, Dutch, Greek, Danish, Hebrew and 23 more
- Released: 2017-12-11
- Data updated: 2026-09-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/scanmaster-for-elm327-obd-2/id1323914943/reviews.md

## What is ScanMaster for ELM327 OBD?

ScanMaster is an application for vehicle diagnostics to OBD-2 standards, communicates with an OBD2 / OBDII / ELM car interface device

How to use:
1. Plug ELM327 WIFI Scanner into vehicle's OBD2 port. (Port is usually found on the driver side dashboard under the steering wheel.)
2. Turn ON ignition. (This is one step before engine is powered.)
3. Launch your ScanMaster App. Click "Settings" for scan list OBD2 device and select correct your OBD device for diagnostics. (default is 192.168.0.10 or 192.168.0.123)

We would greatly appreciate the feedback on the app. Please send us an email about your experiences, opinions or suggestions.

## Key features

- Vehicle diagnostics
- OBD-2 standards communication
- Connects with ELM327 devices
- Trouble code reading
- Vehicle information retrieval

## Recent user reviews (10 of 101)

All indexed reviews: https://appshunter.io/ios/app/scanmaster-for-elm327-obd-2/id1323914943/reviews.md

### 5/5 — Betrug!

*2026-04-06*

Nicht kaufen! Betrug! 5,99€ bezahlt , dann soll man mit 5 Sternen bewerten um die App weiter nutzen zu können und alle Funktionen frei zu schalten!!!!

### 1/5 — Отзыв

*2026-03-07*

Верните деньги обратно. Оно не работает

### 1/5 — NO FUNCIONA

*2025-10-05, version 3.0*

Simplemente no funciona el menú de fallos no aparece nada

### 1/5 — Do NOT BUY!!!

*2025-07-23, version 3.0*

Utter waste of money, doesn’t not connect to and OBD 11 reader

### 1/5 — Nie działa nie warto

*2025-04-19, version 3.0*

Nie działa

### 1/5 — Keine Funktion

*2025-03-31*

Man soll 5,99 zahlen und 5 sterne geben für volle Funktionen. Habe die Rückerstattung sofort beantragt.

### 1/5 — Scan tool app

*2024-09-15, version 3.0*

Doesn’t work

### 5/5 — App

*2024-03-15, version 3.0*

Gute App

### 1/5 — SCAM!!!

*2024-03-11, version 3.0*

SCAM!!!

### 1/5 — Ein Stern ist noch zu viel!!!

*2024-02-25, version 3.0*

Absoluter Schrott, Finger weg!!!

## Frequently asked questions about ScanMaster for ELM327 OBD

### What does ScanMaster for ELM327 OBD-2 do?

ScanMaster is an application designed for vehicle diagnostics following OBD-2 standards. It communicates with an OBD2 / OBDII / ELM car interface device to help you understand your vehicle's health.

### How do I connect ScanMaster to my car?

First, plug your ELM327 WIFI Scanner into your vehicle's OBD2 port. Then, turn on the ignition. Finally, launch the ScanMaster app and go to 'Settings' to select your OBD device from the scan list.

### Is ScanMaster free to use?

Based on the provided information, the app is offered for free. There are no mentions of in-app purchases or advertisements, suggesting a completely free user experience.

### What kind of devices is ScanMaster compatible with?

The app is designed to communicate with OBD2 / OBDII / ELM car interface devices, specifically mentioning ELM327 WIFI Scanners. It requires a physical OBD2 port on your vehicle.

### What are the main benefits of using ScanMaster?

The primary benefit is the ability to perform vehicle diagnostics directly from your mobile device. It allows you to read trouble codes and retrieve vehicle information, empowering you to understand and potentially address car issues.

## Version history (last 1 release)

### 3.0 — 2017-12-11

No release notes.

## More apps by SMART Technologies GmBH

- [Morse Code Trainer Premium](https://appshunter.io/ios/app/morse-code-trainer-premium/id1313641719)
- [Text Group & Export Message](https://appshunter.io/ios/app/text-group-and-export-message/id1314264095)
- [OBD Tracker - ELM327 Terminal](https://appshunter.io/ios/app/obd-tracker-elm327-terminal/id1320748540)
- [Engine OBD - Car Diagnostics](https://appshunter.io/ios/app/engine-obd-car-diagnostics/id1324403331)
- [ScanMaster Lite: ELM327 OBD-2](https://appshunter.io/ios/app/scanmaster-lite-elm327-obd-2/id6740844775)

All apps by SMART Technologies GmBH: https://appshunter.io/developer/1320748539

## Related topics

[obd 2 gm](https://appshunter.io/ios/topics/obd-2-gm)

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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 2026-09-02.*