# R.D. Murray Train Signals App vs CristCDL.com Practice Test CDL

The clearest difference is review sentiment: R.D. Murray Train Signals App at 100% against CristCDL.com Practice Test CDL's 16%. R.D. Murray Train Signals App also leads on rating (4.8 vs 1.7) and ads (none vs shown). CristCDL.com Practice Test CDL's advantage is price (Free vs $19.99) and ratings volume (123 vs 6). On in-app purchases and device support there is nothing between them.

CristCDL.com Practice Test CDL is free to download; R.D. Murray Train Signals App costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

R.D. Murray Train Signals App holds the better App Store score, 4.8 against 1.7. That said, the two scores are not equally well evidenced: CristCDL.com Practice Test CDL has 123 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 100% of R.D. Murray Train Signals App's written reviews are positive against 16% of CristCDL.com Practice Test CDL's.

R.D. Murray Train Signals App ships an update every 3 weeks, CristCDL.com Practice Test CDL every 5 months. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | R.D. Murray Train Signals App | CristCDL.com Practice Test CDL |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/rd-murray-train-signals-app/id6467168748/reviews)** | [1.7 (123 ratings)](https://appshunter.io/ios/app/cristcdlcom-practice-test-cdl/id6738142291/reviews) |
| Number of ratings | 6 | **123** |
| Positive reviews | **100.0% of reviews** | 15.9% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Paid | **Ad-supported** |
| Best chart rank | **#198** | — |
| Size | 48 MB | 8 MB |
| Requires iOS | **12.3** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [RICHARD D MURRAY](https://appshunter.io/developer/1708322691) | [William Crist](https://appshunter.io/developer/1779566537) |

## What reviewers say

### R.D. Murray Train Signals App

[App page](https://appshunter.io/ios/app/rd-murray-train-signals-app/id6467168748)

**Currently charting:** #198 Top Paid · Education (US App Store)

This app helps railroad professionals quickly learn and test their knowledge of standard NORAC signals and signs. It offers digital flashcards, timed tests, and a leaderboard for competitive study. Important operating rules are also included and updated periodically.

**Highlights:** Digital flashcards for NORAC signals and signs, Timed testing for signal recognition, Leaderboard for competitive scoring, Section on important NORAC operating rules, Periodic updates to rules and features

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

**In-app purchases:** none


### CristCDL.com Practice Test CDL

[App page](https://appshunter.io/ios/app/cristcdlcom-practice-test-cdl/id6738142291)

Prepare for your Commercial Driver's License (CDL) exams with state-specific practice tests. Access a comprehensive question bank, including specialized endorsements, and receive immediate feedback with explanations for each answer. Download your state manual for further study.

**Highlights:** State-specific practice tests, General Knowledge tests, Endorsement tests (Air Brakes, Tanker, etc.), Pre-Trip Inspection tests and videos, Immediate answer feedback with explanations, Downloadable state CDL manuals

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

**In-app purchases:** none


## Frequently asked questions

### Is R.D. Murray Train Signals App free?

R.D. Murray Train Signals App costs $19.99, with no in-app purchases.

### Is CristCDL.com Practice Test CDL free?

CristCDL.com Practice Test CDL is free to download, with no in-app purchases.

### Which has better reviews, R.D. Murray Train Signals App or CristCDL.com Practice Test CDL?

R.D. Murray Train Signals App is rated higher. R.D. Murray Train Signals App averages 4.8 out of 5 from 6 ratings, while CristCDL.com Practice Test CDL averages 1.7 from 123 ratings.

### Do R.D. Murray Train Signals App or CristCDL.com Practice Test CDL have ads?

CristCDL.com Practice Test CDL shows ads; R.D. Murray Train Signals App does not.

### Which is updated more often, R.D. Murray Train Signals App or CristCDL.com Practice Test CDL?

R.D. Murray Train Signals App ships an update every 3 weeks, and CristCDL.com Practice Test CDL every 5 months. Most recently, R.D. Murray Train Signals App was updated on October 8, 2026 and CristCDL.com Practice Test CDL on October 18, 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.*