# iDIAMOND Checkride Prep vs JUST PP

The clearest difference is price: iDIAMOND Checkride Prep at Free against JUST PP's $0.99. iDIAMOND Checkride Prep also leads on update cadence (every 6 weeks vs every 4 months) and iOS requirement (13.0 vs 16.0). JUST PP's advantage is in-app purchases (none vs 5). On ads and device support there is nothing between them.

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

iDIAMOND Checkride Prep ships an update every 6 weeks, JUST PP every 4 months. The most recent releases landed on October 12, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | iDIAMOND Checkride Prep | JUST PP |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/idiamond-checkride-prep/id1507414847/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free | — |
| Size | 78 MB | 0 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | 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 Checkride Prep

[App page](https://appshunter.io/ios/app/idiamond-checkride-prep/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

**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 Checkride Prep free?

iDIAMOND Checkride Prep 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 Checkride Prep or JUST PP have ads?

Neither iDIAMOND Checkride Prep nor JUST PP shows ads.

### Which is updated more often, iDIAMOND Checkride Prep or JUST PP?

iDIAMOND Checkride Prep ships an update every 6 weeks, and JUST PP every 4 months. Most recently, iDIAMOND Checkride Prep was updated on October 12, 2026 and JUST PP on October 19, 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.*