J1939OBD vs Rooster Tracking
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
J1939OBD
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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.
Rooster Tracking
This app allows users to automatically track their equipment and small tools. It enables activation and deactivation of specialized hubs and trackers for efficient reporting.
- Automatic equipment reporting
- Track small tools
- Activate Rooster Hubs
- Deactivate Rooster Trackers
- Real-time equipment status
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Equipment Reporting. Automatically. TRACK YOUR EQUIPMENT AND SMALL TOOLS Use the app to activate & deactivate your Rooster Hubs & Trackers
Screenshots
Verdict
The clearest difference is in-app purchases: Rooster Tracking at none against J1939OBD's 1. Rooster Tracking also leads on update cadence (fortnightly vs every 41 months). J1939OBD's advantage is iOS requirement (12.1 vs 15.1). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. J1939OBD sells 1 one-off in-app purchase. Rooster Tracking asks for nothing beyond the download.
J1939OBD ships an update every 41 months, Rooster Tracking fortnightly. The most recent releases landed on September 18, 2026 and October 5, 2026 respectively.
| Parameter | J1939OBD | Rooster Tracking |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Number of ratings | — | 4 — better |
| Update frequency | Every 41 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.1 — better | 15.1 |
| Further details — not scored | ||
| Size | 14 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | S.Koepge | Rooster LLC |
In-app purchases
J1939OBD
- Get full access for 1939OBD$3.99
Rooster Tracking
No in-app purchases









