This utility app connects to your vehicle's onboard diagnostics system via an ELM327 WiFi adapter. It allows you to check your car's version and supported protocols, and includes example commands for troubleshooting.





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If you already know ELM327 WiFi Diagnostic, this is the deeper bench. 226+ elm327 wifi diagnostic apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 1.0★ (1) | No | No | May 2026 | |
| 2 | Free | 4.8★ (31K) | Yes | Yes | Jul 2026 | |
| 3 | Free | — | No | No | May 2026 | |
| 4 | Free | 4.6★ (4.9K) | No | Yes | Jul 2026 | |
| 5 | Free | 4.0★ (723) | No | Yes | Jul 2026 | |
| 6 | Free | 2.5★ (14) | No | No | May 2026 | |
| 7 | Free | 4.6★ (499) | No | Yes | Jul 2026 | |
| 8 | Free | 4.8★ (39K) | No | No | Jul 2026 |





This utility app connects to your vehicle's onboard diagnostics system via an ELM327 WiFi adapter. It allows you to check your car's version and supported protocols, and includes example commands for troubleshooting.






Monitor your car's performance, diagnose engine issues, and view sensor data in real-time. Customize your dashboard with gauges and charts, and reset fault codes. Supports a wide range of vehicles and offers advanced features for specific car brands.





Transform your smartphone into a professional car diagnostic tool. Read and clear engine fault codes, monitor real-time sensor data, and perform advanced diagnostics without a mechanic. Supports a wide range of OBD2 compliant vehicles.


Transform your smartphone into a comprehensive car diagnostic tool. Read and clear trouble codes, monitor real-time vehicle performance, and customize your dashboard for a deeper understanding of your car's health. Includes free engine diagnostics with optional advanced features for specific brands.


This application verifies the version of your ELM327 WiFi device for car diagnostics. It supports a wide range of ELM327 versions, ensuring compatibility with various diagnostic tools.


Monitor your vehicle's health and performance with this app. It offers real-time diagnostics, driving style analysis, and maintenance tracking. Connect to your car's OBD2 scanner for detailed insights and improved driving habits.


Optimize your Wi-Fi network performance with this free app. It helps you detect and connect to networks, scan for devices, test speeds, and improve signal strength by relocating access points.


This app translates and explains car error codes in Arabic. It helps you diagnose vehicle issues without needing to visit a mechanic, providing detailed Arabic explanations for OBD codes.


Connect to your car's OBD2 system using an ELM327 WiFi device. This utility allows you to send AT commands and scan car data. It's compatible with all OBD2-equipped vehicles and ELM327 WiFi devices.


This app transforms your device into a powerful car diagnostic tool. It allows you to monitor real-time sensor data, read and interpret diagnostic trouble codes (DTCs), and access detailed information about your vehicle's systems. Compatible with most cars manufactured after 1996.


Manage your home WiFi network remotely from anywhere. Control connected devices, set up guest networks, and implement parental controls to manage internet access for children. Prioritize devices for better streaming and gaming performance, and enhance security against online threats.


Take full command of your home WiFi network with this app. It provides a comprehensive overview, speed testing, device monitoring, and security features. Easily manage network access and troubleshoot issues for optimal performance.


Test your internet speed and find free Wi-Fi hotspots worldwide. Save on roaming costs by accessing over 50,000 cities with saved passwords and offline capabilities.


Analyze and troubleshoot wireless networks with interactive heatmaps and speed tests. Discover connected devices and test network latency. Visualize WiFi coverage and identify areas needing improvement.


This app allows you to scan your car's trouble codes and view live data using an OBD2 Bluetooth adapter. It logs statistics and freeze frames for future reference, storing all diagnostic trouble codes (DTCs) on a server.


Easily set up and manage your home mesh Wi-Fi network. Gain real-time insights into your network's performance, control internet access for devices, and create guest networks. The app helps ensure uninterrupted Wi-Fi coverage throughout your home.


Diagnose Wi-Fi and internet connectivity issues with a suite of network analysis tools. Discover devices on your LAN, test connectivity with ping and traceroute, and scan for open ports.


Secure and manage your home Wi-Fi network with this app. Features include network security, password management, parental controls, and speed tests.


This app helps you test and analyze your internet connection. It measures download, upload, and ping speeds, displays connection consistency, and checks Wi-Fi signal strength. Advanced features include LAN device scanning, Wi-Fi security checks, and an augmented reality speed test.