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.






70+ iOS apps curated and reviewed
With an average user rating of 3.9★, the elm 327 software category is one of the App Store's strongest. Browse all 70+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 3.4★ (5) | No | Yes | Aug 2026 | ||
| 2 | $9.99 | 3.0★ (88) | No | No | Aug 2026 | ||
| 3 | Free | 4.3★ (19) | No | Yes | Aug 2026 | ||
| 4 | Free | 4.6★ (933) | Yes | Yes | Sep 2026 | ||
| 5 | Free was $49.99 | 3.8★ (37) | No | Yes | Sep 2026 | ||
| 6 | Free | 4.8★ (32K) | Yes | Yes | Sep 2026 | ||
| 7 | Free | 1.4★ (5) | No | No | Sep 2026 | ||
| 8 | Free | 4.6★ (5K) | No | Yes | Sep 2026 |






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 connect to your car's OBD2 port to monitor its performance in real-time. The app guides you through the connection process and supports various OBDII protocols for comprehensive diagnostics.






This app provides comprehensive OBD scanning for vehicles, allowing users to read and clear fault codes from various ECUs, monitor live sensor data, and perform special functions like DPF regeneration and injector coding. It supports over 100 vehicle makes and offers detailed reports and diagnostic assistance.