OTR Diagnostics vs LocomotePro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OTR Diagnostics
This diagnostic tool helps heavy-duty truck owners understand and resolve fault codes, perform crucial maintenance tasks like regens, and monitor live engine data. It aims to reduce downtime and avoid costly dealer visits by empowering users with detailed insights and control over their vehicle's systems.
- Reset active and inactive fault codes
- Perform forced DPF/SCR regens
- Understand fault codes in plain language
- Monitor live engine data
- Track fault code history
- Bi-directional commands for repairs
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OTR Diagnostics — Trusted by 10,000+ Truck Owners Dealing with regen problems, nonstop alerts, fault codes, and unexpected derates on your heavy duty truck? You are not alone. More than 10,000 truck owners and fleets trust OTR Diagnostics to take control, cut downtime, and avoid expensive dealer visits. Powered by OTR Assist + OTR LINK 2 This is more than a scan tool. OTR Assist is your AI partner, breaking down fault codes in plain language and helping you troubleshoot and decide if you can keep driving or need service now. Paired with OTR LINK 2, our proprietary Bluetooth adapter, you get faster connection speeds, more accurate fault code data, and more live data parameters than ever before. It is 5X better than previous hardware. Ask us how to get a FREE upgrade today. Commands That Keep You Moving With bi-directional commands built right into OTR Diagnostics, you are no longer stuck waiting on a shop to do what you can handle yourself. Reset active and inactive fault codes Reset the entire aftertreatment system Reset derates that slow you down Reset soot levels after a DPF service Run forced DPF or SCR regens right from the cab These commands put you back in control, saving you time, money, and downtime. Fault Code Insights Go beyond a flashing dash light. OTR Diagnostics helps you understand fault codes with the same level of detail as dealer software, but in plain language you can actually use. Decode your dash lights Uncover the root causes of issues Track how often a problem occurs Know which repairs or parts are needed Live Data Monitoring Want to know if your regen is working? Want to monitor exhaust temps, soot levels, or DEF? OTR Diagnostics lets you see your truck’s vitals in real time so you can spot issues before they stop you. Common live data parameters include: DPF fluid level DPF soot level EGR valve position Aftertreatment exhaust temps Boost pressure Accelerator pedal position Engine fuel delivery pressure Available live data may vary depending on the engine model your device is connected to. Explore Your History Recurring problems? OTR Diagnostics logs every fault code and command so you can see when issues happened, when they were cleared, and how long regens lasted. Proven. Tested. Backed by Support We run OTR Diagnostics, OTR Assist, and OTR LINK 2 on our own fleet of test trucks including late model Paccar MX engines to make sure everything works before it reaches you. That is why more than 10,000 drivers already trust OTR Diagnostics. Made in Michigan. Built for You We engineer, assemble, and ship right from our shop in Macomb, MI. If you are nearby, stop in and see us. Coverage We support a wide range of heavy duty engines: Cummins: CM871, CM2150, CM2250, CM2350 (2008–2024) Detroit Diesel: DD60, MBE, DD13, DD15, DD16 (2008–2024) Paccar: MX11, MX13 (2011–2024), PX7, PX9 (2008–2024) Volvo: D11, D13, D13TC, D16 (2014–2024) Mack: MP7, MP8, MP8HE, MP10 (2014–2024) For the full list of compatible models, call or text us at 586-799-4375. Need Help or Have Questions? Call or text us anytime at 586-799-4375 or email support@otrperformance.com.
LocomotePro
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Built for Professional Fleets, Powered by Wahyd LocomotePro is a TMS-integrated driver app designed for in-house trucking operations. It connects drivers directly with dispatch and fleet managers, ensuring seamless trip assignments, compliance tracking, and real-time performance visibility. With a simple, driver-friendly interface, LocomotePro reduces complexity on the road and helps your team deliver on time, every time. Key Features for Drivers Assigned Trips, Simplified – Receive trips directly from dispatch, view cargo details, and start navigation instantly. Order & Trip History – Access completed trips, earnings, miles, and delivery status at a glance. Performance Dashboard – Track weekly progress, payouts, and mileage with clear insights. Profile & Compliance – Manage your license, insurance, and emergency contact information securely. In-App Support – Connect with your admin team or support staff instantly through chat. Notifications That Matter – Stay informed on new assignments, status updates, and order completions. Why Fleet Managers Choose LocomotePro Operational Efficiency – Centralized system for assigning, monitoring, and tracking trips. Driver Accountability – Real-time status updates and trip progress reporting. Compliance-Ready – Built-in license and insurance information management. Scalable & Secure – Powered by Wahyd’s TMS, ensuring reliability across large fleets. Who It’s For In-House Trucking Fleets needing structured trip assignment and compliance tracking Logistics Teams requiring visibility into driver performance and order status Drivers who want a simple, reliable tool to manage trips and reduce manual reporting LocomotePro is not just another driver app—it’s an enterprise-grade TMS companion that helps your drivers, dispatchers, and managers work in sync. Download today to make your fleet smarter, safer, and more efficient.
Screenshots
Verdict
The clearest difference is update cadence: LocomotePro at every 4 days against OTR Diagnostics's weekly. LocomotePro also leads on iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
OTR Diagnostics ships an update weekly, LocomotePro every 4 days. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.
| Parameter | OTR Diagnostics | LocomotePro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (99 ratings) — better | — |
| Positive reviews | 55.2% of reviews | — |
| Number of ratings | 99 — better | — |
| Update frequency | Weekly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 268 MB | 48 MB |
| Age rating | 4+ | 17+ |
| Developer | OTR Performance | Wahyd Group Inc. |
Bugs and requests
OTR Diagnostics
Reported bugs
10 issues- App constantly disconnects from device
- Generic code option disappeared
- Forced regen is no longer consistent
- AI assistant not working
- App asks to do things not available in app
Show 5 moreShow fewer
- Bluetooth connection rejects
- App doesn't work without data connection
- Forced regen not activating after updates
- Login authentication errors
- Cannot start regen process on newer models
Requested features
5 requests- Remember email address for login
- Allow offline functionality without data connection
- Add option to change speed
- More detailed diagnostic information
- Allow basic subscription to work on multiple VINs
LocomotePro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
OTR Diagnostics
No in-app purchases
LocomotePro
No in-app purchases
Questions
Is OTR Diagnostics free?
Is LocomotePro free?
Do OTR Diagnostics or LocomotePro have ads?
Which is updated more often, OTR Diagnostics or LocomotePro?
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