# Powerplant Knowledge Test Prep vs 영 단어즙

The clearest difference is price: 영 단어즙 at Free against Powerplant Knowledge Test Prep's $4.99. 영 단어즙 also leads on rating (5.0 vs 1.0) and ratings volume (3 vs 1). Powerplant Knowledge Test Prep's advantage is update cadence (every 10 months vs every 33 months) and iOS requirement (11.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

영 단어즙 is free to download; Powerplant Knowledge Test Prep costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

영 단어즙 holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Powerplant Knowledge Test Prep ships an update every 10 months, 영 단어즙 every 33 months. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Powerplant Knowledge Test Prep | 영 단어즙 |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/powerplant-knowledge-test-prep/id1277240167/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id1480979760/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 33 months |
| Monetization | Paid | **Free** |
| Size | 15 MB | 20 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bravo Zulu Apps LLC](https://appshunter.io/developer/1000879252) | [별책](https://appshunter.io/developer/569035377) |

## What reviewers say

### Powerplant Knowledge Test Prep

[App page](https://appshunter.io/ios/app/powerplant-knowledge-test-prep/id1277240167)

Prepare for your FAA AMT Powerplant Knowledge Exam with this comprehensive study tool. It offers practice quizzes and simulated tests with randomized questions, ensuring you're ready for the real exam. Track your progress and study all questions with correct answers.

**Highlights:** Randomized questions and answer choices, Progress tracking with scores and dates, Simulated FAA exam mode, Study mode with all questions and answers, Zoomable figures, Optional sound effects and haptic feedback

**In-app purchases:** none


### 영 단어즙

[App page](https://appshunter.io/ios/app/id1480979760)

This app offers a concentrated approach to learning English vocabulary through daily, bite-sized "juice" extractions. It uses a quiz format to help users memorize words, tracking incorrect answers for targeted review. Various visual styles and an integrated English-English dictionary enhance the learning experience.

**Highlights:** Daily vocabulary "juice" extraction, Quiz-based learning format, Tracking of incorrect words for review, Integrated Oxford English-English dictionary, Native speaker pronunciation audio, iCloud data synchronization, Customizable learning deadlines

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

**In-app purchases:** none


## Frequently asked questions

### Is Powerplant Knowledge Test Prep free?

Powerplant Knowledge Test Prep costs $4.99, with no in-app purchases.

### Is 영 단어즙 free?

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

### Which has better reviews, Powerplant Knowledge Test Prep or 영 단어즙?

영 단어즙 is rated higher. Powerplant Knowledge Test Prep averages 1.0 out of 5 from 1 ratings, while 영 단어즙 averages 5.0 from 3 ratings.

### Do Powerplant Knowledge Test Prep or 영 단어즙 have ads?

Neither Powerplant Knowledge Test Prep nor 영 단어즙 shows ads.

### Which is updated more often, Powerplant Knowledge Test Prep or 영 단어즙?

Powerplant Knowledge Test Prep ships an update every 10 months, and 영 단어즙 every 33 months. Most recently, Powerplant Knowledge Test Prep was updated on October 17, 2026 and 영 단어즙 on October 13, 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.*