# Azuga ELD vs OTR Diagnostics

The clearest difference is review sentiment: OTR Diagnostics at 55% against Azuga ELD's 10%. OTR Diagnostics also leads on rating (4.0 vs 2.7). Azuga ELD's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (15.6 vs 17.6). On price, ratings volume, update cadence and ads there is nothing between them.

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

OTR Diagnostics holds the better App Store score, 4.0 against 2.7. Both are backed by a comparable volume of ratings — 134 and 99 respectively. Written reviews point the same way: 10% of Azuga ELD's written reviews are positive against 55% of OTR Diagnostics's.

Azuga ELD ships an update every 3 weeks, OTR Diagnostics fortnightly. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Azuga ELD | OTR Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (134 ratings)](https://appshunter.io/ios/app/azuga-eld/id1292859674/reviews) | **[4.0 (99 ratings)](https://appshunter.io/ios/app/otr-diagnostics/id1508165885/reviews)** |
| Number of ratings | **134** | 99 |
| Positive reviews | 9.8% of reviews | **55.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 86 MB | 267 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Azuga, Inc.](https://appshunter.io/developer/967106057) | [OTR Performance](https://appshunter.io/developer/1508165884) |

## What reviewers say

### Azuga ELD

[App page](https://appshunter.io/ios/app/azuga-eld/id1292859674)

This app provides a certified electronic logging solution for commercial drivers, ensuring compliance with US and Canadian regulations for driving hours and vehicle inspections. It offers a user-friendly tablet interface for accurate record-keeping and regulatory adherence.

**Highlights:** Electronic Hours of Service logging, FMCSA certified, Vehicle inspection logs, US and Canadian regulation compliant, Tablet-based interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 User interface easy and straightforward

**What reviewers complain about**

- 😞 Non-existent customer support
- 😞 Unreliable connection to truck
- 😞 Frequent app crashes
- 😞 Poor battery performance
- 😞 Inability to edit logs

**Reported bugs**

- App crashes on login
- App crashes on opening
- Randomly puts driver in service non-driving
- Not compatible with iOS 16.0.2
- App won't open after phone update

**Requested features**

- Ability to edit logs/forgotten punches
- Automatic 'on duty not driving' when stopped
- Bluetooth profile option for iOS
- Beta testing for iOS updates
- One-push nighttime mode


### OTR Diagnostics

[App page](https://appshunter.io/ios/app/otr-diagnostics/id1508165885)

This app helps heavy-duty truck owners diagnose and resolve common issues like fault codes, regen problems, and derates. It provides plain-language explanations of error codes, allows for bi-directional commands to fix issues, and monitors live truck data to prevent downtime.

**Highlights:** AI-powered fault code explanation, Bi-directional commands for repairs, Reset active/inactive fault codes, Run forced DPF/SCR regens, Live data monitoring, Fault code history tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💰 Saves money on repairs
- 🛠️ Clears fault codes
- 🔄 Performs forced regens
- ✅ Works with various engines
- 👍 Easy to use

**What reviewers complain about**

- 💸 Overpriced
- 🐛 Buggy and unstable app
- 🔌 Frequent Bluetooth disconnects
- 📉 Updates cause problems
- ❌ Some features disappeared after updates

**Reported bugs**

- 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

**Requested features**

- 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


## Frequently asked questions

### Is Azuga ELD free?

Azuga 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, Azuga ELD or OTR Diagnostics?

OTR Diagnostics is rated higher. Azuga ELD averages 2.7 out of 5 from 134 ratings, while OTR Diagnostics averages 4.0 from 99 ratings.

### Do Azuga ELD or OTR Diagnostics have ads?

Neither Azuga ELD nor OTR Diagnostics shows ads.

### Which is updated more often, Azuga ELD or OTR Diagnostics?

Azuga ELD ships an update every 3 weeks, and OTR Diagnostics fortnightly. Most recently, Azuga ELD was updated on October 8, 2026 and OTR Diagnostics on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*