# CDL Prep vs Mentor DSP by eDriving℠

The clearest difference is review sentiment: CDL Prep at 81% against Mentor DSP by eDriving℠'s 4%. CDL Prep also leads on rating (4.7 vs 1.2) and chart position (#93 vs unranked). Mentor DSP by eDriving℠'s advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, 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.

CDL Prep holds the better App Store score, 4.7 against 1.2. Both are backed by a comparable volume of ratings — 7K and 1.5K respectively. Written reviews point the same way: 81% of CDL Prep's written reviews are positive against 4% of Mentor DSP by eDriving℠'s.

CDL Prep ships an update every 2 months, Mentor DSP by eDriving℠ every 3 months. The most recent releases landed on November 3, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | CDL Prep | Mentor DSP by eDriving℠ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7K ratings)](https://appshunter.io/ios/app/cdl-prep/id1101536521/reviews)** | [1.2 (1.5K ratings)](https://appshunter.io/ios/app/mentor-dsp-by-edriving/id1357411961/reviews) |
| Number of ratings | **7K** | 1.5K |
| Positive reviews | **80.5% of reviews** | 4.5% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Ad-supported | **Free** |
| Best chart rank | **#93** | — |
| Size | 6 MB | 297 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeffrey Diaz](https://appshunter.io/developer/1101536520) | [eDriving, LLC](https://appshunter.io/developer/1179129948) |

## What reviewers say

### CDL Prep

[App page](https://appshunter.io/ios/app/cdl-prep/id1101536521)

**Currently charting:** #93 Top Free · Education (US App Store)

Prepare for your Commercial Drivers License exams with a comprehensive question bank covering general knowledge and various endorsements. Practice with timed exams or instant feedback modes to identify areas for improvement.

**Highlights:** Over 500 practice questions, Timed exam mode, Endorsement topic exams, Instant feedback in practice mode, Randomized answer order

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate questions
- 👍 Helpful for passing tests
- 💯 Exactly like real test
- 🙌 Great study tool
- ✅ Passed on first try

**What reviewers complain about**

- 🔍 Some questions not on app
- 🔢 Too many ads
- 🔀 Can't close ads
- 🤔 Inconsistent answers

**Reported bugs**

- Back button issues
- Incorrect answers in app

**Requested features**

- Ad-free version
- Ability to report incorrect questions
- Include state-specific requirements


### Mentor DSP by eDriving℠

[App page](https://appshunter.io/ios/app/mentor-dsp-by-edriving/id1357411961)

This app helps delivery drivers improve their safety by tracking driving behaviors, providing daily scores, and offering personalized in-app coaching. Monitor key performance areas and access tailored coaching modules to enhance your driving skills.

**Highlights:** FICO® Safe Driving Score tracking, Performance analysis (braking, acceleration, cornering, speeding, distraction), Trending score charts, Trip detail viewing, Customized coaching modules

**In-app purchases:** none

**What reviewers like**

- 👍 Can't be mad at that 850 FICO

**What reviewers complain about**

- 🐛 False alarms and inaccurate readings
- 🐛 Unreliable and inconsistent performance
- 🔒 Concerns about privacy and data collection
- ⚠️ Negatively impacts driver pay and job security
- ⚠️ Encourages unsafe driving behaviors

**Reported bugs**

- Frequent crashes and glitches
- Inaccurate detection of phone usage, hard braking, and acceleration
- Inconsistent scoring and FICO calculations

**Requested features**

- Improved accuracy and reliability
- Better feedback and transparency
- Ability to dispute or correct false infractions
- Integration with vehicle diagnostics for more reliable data


## Frequently asked questions

### Is CDL Prep free?

CDL Prep is free to download, with no in-app purchases.

### Is Mentor DSP by eDriving℠ free?

Mentor DSP by eDriving℠ is free to download, with no in-app purchases.

### Which has better reviews, CDL Prep or Mentor DSP by eDriving℠?

CDL Prep is rated higher. CDL Prep averages 4.7 out of 5 from 7K ratings, while Mentor DSP by eDriving℠ averages 1.2 from 1.5K ratings.

### Do CDL Prep or Mentor DSP by eDriving℠ have ads?

CDL Prep shows ads; Mentor DSP by eDriving℠ does not.

### Which is updated more often, CDL Prep or Mentor DSP by eDriving℠?

CDL Prep ships an update every 2 months, and Mentor DSP by eDriving℠ every 3 months. Most recently, CDL Prep was updated on November 3, 2026 and Mentor DSP by eDriving℠ on October 22, 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.*