Comparison

TruckingOffice ELD vs OTR Diagnostics

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TruckingOffice ELD

This app helps professional drivers comply with electronic log mandates. It offers easy log editing, automatic drive time tracking, and simple duty status changes. The system only tracks required FMCSA data and provides multiple options for roadside inspections.

Highlights
  • FMCSA Electronic Log Mandate Compliance
  • Editable Logs (excluding driving time)
  • Automatic Drive Time Tracking
  • Simple Duty Status Changes
  • Roadside Inspection Data Submission (Email, Web Service, On-Device View)
  • Plug and Play Vehicle Interface Device
Read full description

TruckingOffice ELD is the best choice for all professional drivers that are required to comply with the FMCSA Electronic Log Mandate. It is easy to implement even if you aren't tech savvy. The switch will give you peace of mind and keep you working. Easy to edit your logs. After you create you logs, sometime things need to be adjusted. All logs are fully editable except driving time per FMCSA guidelines. Only tracks what is required by FMCSA. When submitting records to the DOT inspection officers the system will submit all required information, but won't send any additional data. Roadside Inspection - there are three methods of supplying the inspection data to a roadside inspector. You can send via email, send it to the DOT via web service, or you can view the information on your phone. Simple duty status change. Changing your duty status from the drop down is simple and you can enter comments as needed. Your duty status will automatically change when you start driving, making it automatic for tracking drive time. Plug and Play - No Installation Required The VID (vehicle interface device) plugs into the ECM (electonic control module) port on your truck and talks to the TruckingOffice ELD app via blue tooth technology. There is no installation involved. This is a simple plug and play device. You don't have to do any complicated pairing or anything. It just works.

About

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.

Highlights
  • 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
Features
Read full description

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.

Screenshots

TruckingOffice ELD4 screens
OTR Diagnostics4 screens

Verdict

The call

The clearest difference is rating: OTR Diagnostics at 4.0 against TruckingOffice ELD's 3.4. OTR Diagnostics also leads on update cadence (fortnightly vs every 4 months) and ratings volume (99 vs 9). TruckingOffice ELD's advantage is iOS requirement (15.6 vs 17.6). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OTR Diagnostics holds the better App Store score, 4.0 against 3.4. That said, the two scores are not equally well evidenced: OTR Diagnostics has 99 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 43% of TruckingOffice ELD's written reviews are positive against 55% of OTR Diagnostics's.

UpkeepUpdate frequency

TruckingOffice ELD ships an update every 4 months, OTR Diagnostics fortnightly. Both last shipped on October 29, 2026.

Scorecard5 real differences · 5 level
TruckingOffice ELD versus OTR Diagnostics: the parameters behind the verdict, then further details
ParameterTruckingOffice ELDOTR Diagnostics
PriceFreeFree
Rating3.4 (9 ratings)4.0 (99 ratings) — better
Positive reviews42.9% of reviews55.2% of reviews — better
Number of ratings999 — better
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size22 MB268 MB
Age rating4+4+
DeveloperTruckingOfficeOTR Performance

Customer experience

TruckingOffice ELD

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews7 reviews
Positive42.9%
Neutral14.3%
Negative42.9%

OTR Diagnostics

All ratings99 ratings
Positive70.7%
Neutral7.1%
Negative22.2%
Written reviews58 reviews
Positive55.2%
Neutral10.3%
Negative34.5%

Bugs and requests

TruckingOffice ELD

Not enough reviews yet to summarise bugs or 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 more
  • 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

In-app purchases

None

TruckingOffice ELD

No in-app purchases

None

OTR Diagnostics

No in-app purchases

Questions

Is TruckingOffice ELD free?
TruckingOffice ELD is free to download, with no in-app purchases.
Is OTR Diagnostics free?
OTR Diagnostics is free to download, with no in-app purchases.
Which has better reviews, TruckingOffice ELD or OTR Diagnostics?
OTR Diagnostics is rated higher. TruckingOffice ELD averages 3.4 out of 5 from 9 ratings, while OTR Diagnostics averages 4.0 from 99 ratings.
Do TruckingOffice ELD or OTR Diagnostics have ads?
Neither TruckingOffice ELD nor OTR Diagnostics shows ads.
Which is updated more often, TruckingOffice ELD or OTR Diagnostics?
TruckingOffice ELD ships an update every 4 months, and OTR Diagnostics fortnightly. Most recently, TruckingOffice ELD was updated on October 29, 2026 and OTR Diagnostics on October 29, 2026.

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