# SCADA & PLC Academy vs GROL Prep

The clearest difference is in-app purchases: GROL Prep at none against SCADA & PLC Academy's 4. GROL Prep also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. SCADA & PLC Academy sells 4 one-off in-app purchases. GROL Prep asks for nothing beyond the download.

## The numbers

| Metric | SCADA & PLC Academy | GROL Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grol-prep/id6786787749/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Monetization | — | Free |
| Size | 158 MB | 35 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuhsiu Lai](https://appshunter.io/developer/433114647) | [Mr Wolfe Aviation LLC](https://appshunter.io/developer/1896335149) |

## What reviewers say

### SCADA & PLC Academy

[App page](https://appshunter.io/ios/app/scada-and-plc-academy/id6780137074)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PLC Programming Module | $4.99 | one-time |
| SCADA Design Module | $4.99 | one-time |
| SCADA Workflow Module | $4.99 | one-time |
| Complete Bundle | $14.99 | one-time |


### GROL Prep

[App page](https://appshunter.io/ios/app/grol-prep/id6786787749)

Prepare for your FCC General Radiotelephone Operator License exam with a focus on understanding core principles. This app offers detailed explanations, a built-in glossary, and an AI tutor to help you master radio law and theory.

**Highlights:** Focus on understanding, not memorization, Detailed explanations for correct and incorrect answers, Real-world application connections, Built-in glossary of technical terms, AI tutor for concept clarification, Practice quizzes by topic, Scoring against passing threshold

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SCADA & PLC Academy free?

SCADA & PLC Academy is free to download, with in-app purchases available.

### Is GROL Prep free?

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

### Do SCADA & PLC Academy or GROL Prep have ads?

Neither SCADA & PLC Academy nor GROL Prep shows ads.

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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.*