6+ iOS apps curated and reviewed
Every iPhone needs a few good j1939obd apps. We benchmark 6+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | Yes | Oct 2026 | |
| 2 |  | Free | 3.7★ (34) | Yes | No | Oct 2026 | |
| 3 |  | Free | 3.1★ (49) | No | No | Nov 2026 | |
| 4 |  | Free | 4.0★ (2) | No | No | Oct 2026 | |
| 5 |  | Free | 5.0★ (2) | No | No | Aug 2026 | |
| 6 |  | Free | — | No | No | Sep 2026 |
This diagnostic app connects to industrial and commercial vehicle engines via the J1939 CAN protocol. It allows users to view and clear error codes, monitor engine performance metrics, and access information on DPF and SCR systems. Requires a compatible WiFi OBD interface and connection cable.
A highly-rated, user-friendly web browser offering a clean interface and smooth performance. Enjoy a surprising and delightful browsing experience with intuitive features.
This app provides genuine service products and capabilities for Cummins equipment. It helps speed up repairs and improve customer uptime by offering fault code information, diagnostic tools, and the ability to share service data.