# PowerkVA vs CDL Prep

The clearest difference is price: CDL Prep at Free against PowerkVA's $1.99. CDL Prep also leads on update cadence (every 2 months vs every 94 months) and ratings volume (6.7K vs 10). PowerkVA's advantage is ads (none vs shown) and review sentiment (100% vs 81%). On rating, in-app purchases, chart position and device support there is nothing between them.

CDL Prep is free to download; PowerkVA costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for PowerkVA against 4.7 for CDL Prep. That said, the two scores are not equally well evidenced: CDL Prep has 6.7K ratings behind it against 10, so its average is the more settled of the two. Written reviews are what separate them: 100% of PowerkVA's written reviews are positive against 81% of CDL Prep's.

PowerkVA ships an update every 94 months, CDL Prep every 2 months. The most recent releases landed on July 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | PowerkVA | CDL Prep |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.6 (10 ratings)](https://appshunter.io/ios/app/powerkva/id778275984/reviews) | **[4.7 (6.7K ratings)](https://appshunter.io/ios/app/cdl-prep/id1101536521/reviews)** |
| Number of ratings | 10 | **6.7K** |
| Positive reviews | **100.0% of reviews** | 80.9% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 94 months | **Every 2 months** |
| Monetization | Paid | **Ad-supported** |
| Best chart rank | #180 | **#76** |
| Size | 3 MB | 6 MB |
| Requires iOS | **14.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Manuel Olivera](https://appshunter.io/developer/778275987) | [Jeffrey Diaz](https://appshunter.io/developer/1101536520) |

## What reviewers say

### PowerkVA

[App page](https://appshunter.io/ios/app/powerkva/id778275984)

**Currently charting:** #180 Top Paid · Education (US App Store)

This app simplifies electrical transformer calculations using formulas and drawings. It offers standard transformer sizes and voltages with an intuitive interface for easy value selection.

**Highlights:** Electrical transformer computation, Formulas and drawings, Standard transformer sizes, Standard voltages, Simple value selection

**Features:** macOS Compatibility

**In-app purchases:** none


### CDL Prep

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

**Currently charting:** #76 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


## Frequently asked questions

### Is PowerkVA free?

PowerkVA costs $1.99, with no in-app purchases.

### Is CDL Prep free?

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

### Which has better reviews, PowerkVA or CDL Prep?

CDL Prep is rated higher. PowerkVA averages 4.6 out of 5 from 10 ratings, while CDL Prep averages 4.7 from 6.7K ratings.

### Do PowerkVA or CDL Prep have ads?

CDL Prep shows ads; PowerkVA does not.

### Which is updated more often, PowerkVA or CDL Prep?

PowerkVA ships an update every 94 months, and CDL Prep every 2 months. Most recently, PowerkVA was updated on July 7, 2026 and CDL Prep on September 29, 2026.

### Which is more popular, PowerkVA or CDL Prep?

PowerkVA currently peaks at #180 in the App Store charts, and CDL Prep at #76. Chart position reflects recent download velocity rather than total install base.

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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.*