243+ iOS apps curated and reviewed
OBD2 Trouble Code is the household name in diagnostics code, but it's far from the only option. We track 243+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 3.3★ (297) | No | No | Aug 2026 |
| 2 |  | Free | 3.3★ (3) | No | No | May 2026 |
| 3 |  | Free | — | Yes | Yes | Aug 2026 |
| 4 |  | Free | 3.7★ (3) | No | Yes | Aug 2026 |
| 5 |  | Free | — | No | No | Aug 2026 |
| 6 |  | Free | — | No | No | Aug 2026 |
| 7 |  | Free | — | No | No | Jun 2026 |
| 8 |  | Free | 4.0★ (111) | Yes | Yes | Aug 2026 |
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.
This app serves as a reference for standard Diagnostic Trouble Codes (DTCs). It helps users understand fault codes generated by a vehicle's onboard computer, aiding in problem diagnosis.
This app provides professional diagnostic and coding capabilities for BMW vehicles. It allows users to read and clear fault codes, view live sensor data, and access AI-powered fault analysis. Advanced features include service resets, ECU identification, and repair guides for a comprehensive vehicle maintenance experience.
Access a searchable database of diagnostic codes needed for billing the Ontario Health Insurance Program. Quickly find codes by diagnosis or number, create custom aliases for easier recall, and manage favorite codes for efficient lookups.
This AI-powered assistant helps with vehicle diagnostics, repair, and parts lookup. It provides detailed repair guides, intelligent diagnostic support, and a comprehensive parts database to save time and reduce costs.
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.
Access real-time vehicle data and perform full system scans to detect and diagnose fault codes. Get detailed engineering descriptions and recommended fixes instantly for your car's electronic control units.
Transform your iPhone into a powerful car diagnostic tool. Read and clear trouble codes, monitor live vehicle sensor data, and understand check engine light warnings. Works with most vehicles manufactured since 1996 using standard OBD2 adapters.
Diagnose your car's engine light issues and monitor real-time performance data. This app allows you to read and clear diagnostic trouble codes, track fuel consumption, and view sensor data. It's a comprehensive tool for understanding your vehicle's health.
This app provides definitions and potential causes for On-Board Diagnostics (OBD) trouble codes. It covers a wide range of generic and manufacturer-specific codes for numerous vehicle models, helping users understand and potentially fix error codes.
This app provides professional-level vehicle diagnostics, offering features like reading/clearing fault codes, data flow analysis, and special maintenance functions. It supports a wide range of car brands and allows users to subscribe to specific diagnostic software. Connects via Bluetooth to your smartphone for intelligent vehicle analysis.
This app helps heavy-duty truck owners diagnose and resolve common issues like fault codes, regen problems, and derates. It provides plain-language explanations of error codes, allows for bi-directional commands to fix issues, and monitors live truck data to prevent downtime.
This app provides comprehensive vehicle care and repair information for car and truck owners, DIYers, and technicians. It offers diagnostic capabilities with compatible OBD2 scanners and a vast database of verified fixes from ASE Master Technicians. Users can also access free vehicle maintenance information and schedule repairs.
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.
Access a comprehensive database of OBD II diagnostic trouble codes. Quickly look up definitions for generic and manufacturer-specific codes without an internet connection. Easily copy and share code descriptions.