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Screenshots

  • J1939OBD screenshot 1
  • J1939OBD screenshot 2
  • J1939OBD screenshot 3
  • J1939OBD screenshot 4

About J1939OBD

A diagnostic app for industrial and commercial vehicle engines using the J1939 CAN protocol. The app supports the following functions: - Display the active error codes - Display the passive error codes - Delete the error codes - Display of engine measured values - Information about the status DPF - Information about the SCR system - Information about fuel consumption - Engine information - Terminal mode To connect to the engine you need an EML327 compatible Wifi OBD interface as of V1.4 and a connection cable from the diagnostic connector to OBD. Various manufacturers offer corresponding cables, as well as a well-known engine manufacturer from Cologne, who distributes a corresponding adapter cable via his dealer network. Visit my homepage for further informations. An EML327 Wifi interface is offered on known Internet platforms.

What’s new

Version 1.3 · Updated January 13, 2026

Bug fixes and performance improvements

App privacy

The developer, S.Koepge, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to J1939OBD

Looking for apps like J1939OBD? Here are 6 similar apps on the App Store. The highest rated is xHP Flashtool (4.9/5), and all 6 are free to download.

J1939OBD vs. alternatives
App Rating Price Last updated
J1939OBD – Free January 13, 2026
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VMP Pass: Password Manager 4.8 / 5 (5) Free Jul 21, 2026
Gyraline 3.8 / 5 (99) Free Sep 23, 2026
xHP Flashtool 4.9 / 5 (2,724) Free Sep 17, 2026