# iDIAMOND Aircraft Apps vs JUST PP

The clearest difference is price: iDIAMOND Aircraft Apps at Free against JUST PP's $0.99. iDIAMOND Aircraft Apps also leads on update cadence (monthly vs every 4 months). JUST PP's advantage is in-app purchases (none vs 5). On ads, device support and iOS requirement there is nothing between them.

iDIAMOND Aircraft Apps is free to download; JUST PP costs $0.99 up front. iDIAMOND Aircraft Apps sells 5 one-off in-app purchases. JUST PP asks for nothing beyond the download.

iDIAMOND Aircraft Apps ships an update monthly, JUST PP every 4 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | iDIAMOND Aircraft Apps | JUST PP |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/idiamond-aircraft-apps/id1507414847/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free | — |
| Size | 69 MB | 0 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aircraft Apps LLC](https://appshunter.io/developer/1499571546) | [Robert Martens](https://appshunter.io/developer/1523619480) |

## What reviewers say

### iDIAMOND Aircraft Apps

[App page](https://appshunter.io/ios/app/idiamond-aircraft-apps/id1507414847)

Prepare for aviation checkrides with interactive flashcards, quizzes, and an AI assistant. Access worldwide weather, airport information, and a community forum for pilots. Includes a fun aviation-themed board game to reinforce learning.

**Highlights:** Aircraft system flashcards and quizzes, AI-powered aviation Q&A, Worldwide weather and airport data, Customizable flashcard maker, Aviation-themed board game, Community message board

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MindCoach: Personal Health | $19.99 | one-time |
| 20 FAA Handbooks & Manuals | $19.99 | one-time |
| Diamond DA-20 Checkride Prep | $29.99 | one-time |
| Diamond DA-42 Checkride Prep | $29.99 | one-time |
| Diamond DA-40 | $29.99 | one-time |


### JUST PP

[App page](https://appshunter.io/ios/app/just-pp/id6449464429)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iDIAMOND Aircraft Apps free?

iDIAMOND Aircraft Apps is free to download, with in-app purchases available.

### Is JUST PP free?

JUST PP costs $0.99, with no in-app purchases.

### Do iDIAMOND Aircraft Apps or JUST PP have ads?

Neither iDIAMOND Aircraft Apps nor JUST PP shows ads.

### Which is updated more often, iDIAMOND Aircraft Apps or JUST PP?

iDIAMOND Aircraft Apps ships an update monthly, and JUST PP every 4 months. Most recently, iDIAMOND Aircraft Apps was updated on November 3, 2026 and JUST PP on November 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.*