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.






244+ iOS apps curated and reviewed
OBDII Scanner ELM327 OBD2 is the household name in free code scanner car, but it's far from the only option. We track 244+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 3.4★ (5) | No | Yes | Oct 2026 | ||
| 2 | Free | 4.7★ (39) | Yes | Yes | Sep 2026 | ||
| 3 | Free | 5.0★ (3) | No | Yes | Oct 2026 | ||
| 4 | Free | 1.0★ (1) | No | Yes | Oct 2026 | ||
| 5 | Free | 4.3★ (46K) | Yes | Yes | Oct 2026 | ||
| 6 | Free | 5.0★ (1) | No | No | Oct 2026 | ||
| 7 | Free | 4.1★ (96) | No | No | Oct 2026 | ||
| 8 | Free | 3.8★ (1.3K) | Yes | Yes | Oct 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.






This app functions as a universal vehicle scanner using the OBD2 standard. It connects to your car via WiFi or Bluetooth 4.0 LE adapters to diagnose and scan electronic control modules. Users need a compatible ELM327 adapter to utilize its diagnostic capabilities.






Transform your smartphone into a professional car diagnostic tool. This app reads and clears trouble codes, monitors live engine data, and uses AI to explain issues and provide repair guidance. It works with most vehicles and OBD2 adapters.