# OTR Diagnostics vs HD Mobile II(CanDo)

The clearest difference is rating: HD Mobile II(CanDo) at 5.0 against OTR Diagnostics's 4.0. HD Mobile II(CanDo) also leads on iOS requirement (11.0 vs 17.6). OTR Diagnostics's advantage is ratings volume (99 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

HD Mobile II(CanDo) holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: OTR Diagnostics has 99 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | OTR Diagnostics | HD Mobile II(CanDo) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (99 ratings)](https://appshunter.io/ios/app/otr-diagnostics/id1508165885/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hd-mobile-iicando/id1664999431/reviews)** |
| Number of ratings | **99** | 2 |
| Positive reviews | 55.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free | Free |
| Size | 268 MB | 25 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [OTR Performance](https://appshunter.io/developer/1508165884) | [Cando International Inc.](https://appshunter.io/developer/1208370212) |

## What reviewers say

### OTR Diagnostics

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

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:** 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


### HD Mobile II(CanDo)

[App page](https://appshunter.io/ios/app/hd-mobile-iicando/id1664999431)

Turn your smart device into a powerful diagnostic tool for class 4-8 trucks and passenger cars. Perform DPF resets and regens, diagnose trouble codes, and view live data to avoid roadside breakdowns.

**Highlights:** Class 4-8 code scanner, DPF Reset and Regen, OBDII engine diagnostics, Diagnose and clear trouble codes, View live data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OTR Diagnostics free?

OTR Diagnostics is free to download, with no in-app purchases.

### Is HD Mobile II(CanDo) free?

HD Mobile II(CanDo) is free to download, with no in-app purchases.

### Which has better reviews, OTR Diagnostics or HD Mobile II(CanDo)?

HD Mobile II(CanDo) is rated higher. OTR Diagnostics averages 4.0 out of 5 from 99 ratings, while HD Mobile II(CanDo) averages 5.0 from 2 ratings.

### Do OTR Diagnostics or HD Mobile II(CanDo) have ads?

Neither OTR Diagnostics nor HD Mobile II(CanDo) shows ads.

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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.*