# Air Force vs ADF Test Trainer (JOA Prep)

The clearest difference is in-app purchases: Air Force at none against ADF Test Trainer (JOA Prep)'s 2. Air Force also leads on iOS requirement (8.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ADF Test Trainer (JOA Prep) sells 2 in-app purchases, starting at $9.99 per 7 days. Air Force asks for nothing beyond the download.

Air Force ships an update every 3 weeks, ADF Test Trainer (JOA Prep) every 6 weeks. The most recent releases landed on October 17, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Air Force | ADF Test Trainer (JOA Prep) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free | — |
| Size | 639 MB | 172 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Australian Government Department of Defence](https://appshunter.io/developer/567919022) | [Seliant ApS](https://appshunter.io/developer/554676523) |

## What reviewers say

### Air Force

[App page](https://appshunter.io/ios/app/air-force/id1444698194)

Enhance your Australian International Airshow experience with this companion app. Engage with interactive maps, scan aircraft and posters to unlock virtual rewards, and test your knowledge with a quiz to earn merchandise.

**Highlights:** Interactive event map, Aircraft scanning and virtual hangar, Poster scanner, Air Force quiz with rank progression, Unlockable merchandise rewards

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

**In-app purchases:** none


### ADF Test Trainer (JOA Prep)

[App page](https://appshunter.io/ios/app/adf-test-trainer-joa-prep/id6748261766)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ADF Trainer, Weekly | $9.99 | per 7 days |
| ADF Trainer, Monthly | $14.99 | per month |


## Frequently asked questions

### Is Air Force free?

Air Force is free to download, with no in-app purchases.

### Is ADF Test Trainer (JOA Prep) free?

ADF Test Trainer (JOA Prep) is free to download, with in-app purchases available.

### Do Air Force or ADF Test Trainer (JOA Prep) have ads?

Neither Air Force nor ADF Test Trainer (JOA Prep) shows ads.

### Which is updated more often, Air Force or ADF Test Trainer (JOA Prep)?

Air Force ships an update every 3 weeks, and ADF Test Trainer (JOA Prep) every 6 weeks. Most recently, Air Force was updated on October 17, 2026 and ADF Test Trainer (JOA Prep) on October 4, 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.*