238+ iOS apps curated and reviewed
The best obd2 fault codes with solution apps on iPhone average 3.9★ across 238+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.7★ (3) | Yes | Yes | Aug 2026 | |
| 2 |  | Free | 4.6★ (5K) | No | Yes | Oct 2026 | |
| 3 |  | Free | 3.3★ (306) | No | No | Sep 2026 | |
| 4 |  | Free | 1.0★ (6) | No | No | Sep 2026 | |
| 5 |  | Free | 4.5★ (1.1K) | No | No | Sep 2026 | |
| 6 |  | Free | 2.8★ (15) | No | No | Sep 2026 | |
| 7 |  | Free | 5.0★ (7) | No | Yes | Sep 2026 | |
| 8 |  | Free | 4.4★ (6.2K) | No | Yes | Sep 2026 |
Decode automotive trouble codes with a comprehensive database and detailed explanations. Find step-by-step guides to diagnose and resolve issues, making car maintenance accessible for all users.
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.
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.
