244+ iOS apps curated and reviewed
Looking for free code reader vehicle apps? 20 of our 244+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 1.0★ (2) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 4.0★ (5) | No | Yes | May 2026 |
| 3 |  | Free | 3.3★ (297) | No | No | Aug 2026 |
| 4 |  | Free | — | No | No | Aug 2026 |
| 5 |  | Free | — | No | No | May 2026 |
| 6 |  | Free | 4.6★ (243) | No | Yes | Aug 2026 |
| 7 |  | Free | 4.7★ (112) | Yes | Yes | Aug 2026 |
| 8 |  | Free | 5.0★ (3) | No | No | Aug 2026 |
This app connects to your car's diagnostic adapter to provide real-time vehicle data. Monitor fuel consumption, diagnose faults, and receive timely warnings for potential issues. It also offers customizable displays and driving habit analysis.
Diagnose Harley-Davidson motorcycle issues directly from your iPhone. Access detailed code descriptions, view diagnostic videos, and monitor live sensor data. Save and retrieve your code history for advanced troubleshooting.
Instantly look up your car's check engine codes on the go. Access a vast database of OBD2 codes with descriptions and potential causes for all major manufacturers. Save your search history for quick reference.
Easily scan, generate, and share QR codes and barcodes. Quickly read various code types, including links, contacts, and product information. Generate new codes from text, emails, or Wi-Fi details, and utilize convenient extensions for seamless integration.
Instantly decode any vehicle's VIN with this app. It offers both manual input and a VIN scanner for quick, accurate vehicle information, including auction history and average pricing.
Instantly decode GM vehicle RPO codes by scanning the QR code on your vehicle's label. Get a clear list of factory options installed on your car, making it easy to understand its specifications. Supports 2017 and newer model years.
This app acts as a pocket code wizard, offering lightning-fast QR and barcode scanning. It also allows you to create your own QR codes using preset templates and color combinations, exporting them in high-definition PNG format.
Easily scan and decode QR codes for various purposes, from unlocking Wi-Fi to accessing digital cards. It also functions as a barcode scanner for product information and price comparison. Generate custom QR codes with personalized styles and save your scan history.
Automatically read and verify various identity documents using your device's camera or gallery. It supports OCR, MRZ, RFID chips, and barcodes for rapid, secure, and offline data extraction and validation.
Capture code ideas and notes on the go, read code comfortably on your phone with customizable displays, and support multiple programming languages. This tool aims to make your coding life more flexible and convenient.
This app is a versatile scanner and generator for QR codes and barcodes, offering product recognition, price comparison, and academic problem-solving powered by GPT-4o. It also functions as a document scanner and OCR tool, with local data storage for enhanced privacy.
Quickly scan QR codes and barcodes using your phone's camera or from your media library. This user-friendly app offers simple navigation and an intuitive design for decoding information.
This app turns your smartphone into a powerful OBD2 scan tool. It allows you to read and clear trouble codes, view live data, and generate detailed repair reports for your vehicle. Understand your car's issues and make informed repair decisions.
Read and analyze programming code on mobile devices with extensive language support and syntax highlighting. Features include GitHub integration, code searching, and symbol navigation, eliminating the need for a PC for code review.
This app is an intelligent scanning companion that combines universal code reading with AI-powered object identification and creative QR code generation. It prioritizes user privacy with on-device processing and no data collection.
This utility app quickly scans QR codes and barcodes, offering smart actions like opening links or connecting to Wi-Fi. It also allows users to generate custom QR codes for various purposes and securely store scan history.
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.
Quickly scan QR codes with a single touch to access information at high speed. This app also allows you to create various types of QR codes and share them easily with friends. It offers an intuitive interface and efficient operation for a convenient user experience.