# Freight Book vs OTR Diagnostics

The clearest difference is rating: OTR Diagnostics at 4.0 against Freight Book's 3.0. OTR Diagnostics also leads on update cadence (fortnightly vs every 14 months) and ratings volume (99 vs 2). Freight Book's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (13.2 vs 17.6). On price, ads, in-app purchases and device support 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 3.0. 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.

Freight Book ships an update every 14 months, OTR Diagnostics fortnightly. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Freight Book | OTR Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/freight-book/id1463397868/reviews) | **[4.0 (99 ratings)](https://appshunter.io/ios/app/otr-diagnostics/id1508165885/reviews)** |
| Number of ratings | 2 | **99** |
| Positive reviews | — | 55.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 267 MB |
| Requires iOS | **13.2** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Freight Book, Inc](https://appshunter.io/developer/1463397867) | [OTR Performance](https://appshunter.io/developer/1508165884) |

## What reviewers say

### Freight Book

[App page](https://appshunter.io/ios/app/freight-book/id1463397868)

This app helps truck drivers manage their trips, providing load information, GPS tracking, and audible instructions for pickups and deliveries. Drivers can share trip progress and history effortlessly, eliminating the need for manual updates to stakeholders.

**Highlights:** Create and manage trips, GPS tracking for progress, Audible pickup/delivery instructions, Share trip history, Load information, Substantiate detention claims

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Freight Book free?

Freight Book 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, Freight Book or OTR Diagnostics?

OTR Diagnostics is rated higher. Freight Book averages 3.0 out of 5 from 2 ratings, while OTR Diagnostics averages 4.0 from 99 ratings.

### Do Freight Book or OTR Diagnostics have ads?

Neither Freight Book nor OTR Diagnostics shows ads.

### Which is updated more often, Freight Book or OTR Diagnostics?

Freight Book ships an update every 14 months, and OTR Diagnostics fortnightly. Most recently, Freight Book was updated on October 11, 2026 and OTR Diagnostics on October 15, 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.*