# CDL Prep Practice Test Genie vs KnowledgeVine

The clearest difference is in-app purchases: KnowledgeVine at none against CDL Prep Practice Test Genie's 18. KnowledgeVine also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CDL Prep Practice Test Genie sells 18 in-app purchases, starting at $39.00 per month. KnowledgeVine asks for nothing beyond the download.

CDL Prep Practice Test Genie ships an update monthly, KnowledgeVine every 2 months. The most recent releases landed on October 15, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | CDL Prep Practice Test Genie | KnowledgeVine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (14K ratings)](https://appshunter.io/ios/app/cdl-prep-practice-test-genie/id1447415467/reviews)** | — |
| Number of ratings | **14K** | — |
| Positive reviews | 86.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 160 MB | 26 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Elegant eLearning](https://appshunter.io/developer/497640353) | [Knowledge Vine, LLC](https://appshunter.io/developer/1325657464) |

## What reviewers say

### CDL Prep Practice Test Genie

[App page](https://appshunter.io/ios/app/cdl-prep-practice-test-genie/id1447415467)

Prepare for your CDL permit and endorsement tests with an FMCSA-approved app. It offers ELDT theory certification, exam-level practice questions, and personalized study tools to help you pass your commercial driver's license exams.

**Highlights:** ELDT Theory Certification, FMCSA-approved training, Exam-level practice questions, Personalized Challenge Bank, Detailed explanations, Passing Probability score, Covers all CDL classes and endorsements

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CDL Premium All-in-one + ELDT | $39.00 | per month |
| CDL All-in-one Exam Prep | $39.99 | per month |
| CDL All-in-one Exam Prep | $49.99 | per month |
| CDL All-in-one Exam Prep | $49.99 | per month |
| CDL Premium 1-month | $49.99 | per month |
| “Non-ELDT Endorsements” 30-Day | $49.99 | per month |
| Class A CDL Exam Prep - 30 Days | $99.00 | per month |
| Class B to A ELDT + 30-DayExam | $99.00 | per month |
| Class B CDL Exam Prep - 30 Days | $99.99 | per month |
| Class C | $99.99 | per month |
| CDL Genie Premium | $14.99 | one-time |
| Class B ELDT Certification | $69.99 | one-time |
| Class A ELDT Certification | $69.99 | one-time |
| HazMat ELDT + 7-Day Exam Prep | $69.99 | one-time |
| School Bus ELDT + 7-Day Exam | $69.99 | one-time |
| CDL Premium Lifetime | $99.99 | one-time |
| HazMat ELDT + 30-DayExam Prep | $99.99 | one-time |
| Passenger ELDT + 30-Day Prep | $99.99 | one-time |

**What reviewers like**

- 🚀 Effective study tool
- 👍 Accurate to real exam questions
- 💡 Comprehensive coverage of topics
- 🚀 Efficient for passing tests
- 👍 Helpful for various endorsements

**What reviewers complain about**

- 🐛 Some questions not on the app
- 🔒 Difficult to cancel subscription
- 💰 Concerns about pricing and costs

**Reported bugs**

- Subscription issues and double-charging
- Inability to log in after device change

**Requested features**

- Ability to increase text size
- Improved syncing across devices
- Easier subscription cancellation


### KnowledgeVine

[App page](https://appshunter.io/ios/app/knowledgevine/id1637147448)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CDL Prep Practice Test Genie free?

CDL Prep Practice Test Genie is free to download, with in-app purchases available.

### Is KnowledgeVine free?

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

### Do CDL Prep Practice Test Genie or KnowledgeVine have ads?

Neither CDL Prep Practice Test Genie nor KnowledgeVine shows ads.

### Which is updated more often, CDL Prep Practice Test Genie or KnowledgeVine?

CDL Prep Practice Test Genie ships an update monthly, and KnowledgeVine every 2 months. Most recently, CDL Prep Practice Test Genie was updated on October 15, 2026 and KnowledgeVine on October 3, 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.*