# Pilot Question Database vs Inversion Operations

The clearest difference is in-app purchases: Inversion Operations at none against Pilot Question Database's 4. Inversion Operations also leads on iOS requirement (15.1 vs 18.6). Pilot Question Database's advantage is device support. On price there is nothing between them.

Both are free to download. Pilot Question Database sells 4 one-off in-app purchases. Inversion Operations asks for nothing beyond the download.

## The numbers

| Metric | Pilot Question Database | Inversion Operations |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8 ratings)](https://appshunter.io/ios/app/pilot-question-database/id590508384/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 192 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Appulize](https://appshunter.io/developer/321809392) | [Muhammed Musharaf](https://appshunter.io/developer/1875872718) |

## What reviewers say

### Pilot Question Database

[App page](https://appshunter.io/ios/app/pilot-question-database/id590508384)

This app provides over 2,500 questions and explanations for student pilots preparing for European PPL or LAPL licenses. It covers standardized theoretical goals for the entire EU region, ensuring comprehensive preparation for national exams. The content is regularly updated based on user feedback and new regulations.

**Highlights:** Over 2,500 pilot exam questions, Explanations and attachments included, Covers EU PPL and LAPL licenses, Standardized theoretical goals, Regular content updates, English language database

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| H50P (Swedish) | $0.99 | one-time |
| One month | $5.99 | one-time |
| Three months | $14.99 | one-time |
| Twelve months | $49.99 | one-time |


### Inversion Operations

[App page](https://appshunter.io/ios/app/inversion-operations/id6758939902)

**In-app purchases:** none


## Frequently asked questions

### Is Pilot Question Database free?

Pilot Question Database is free to download, with in-app purchases available.

### Is Inversion Operations free?

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

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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.*