# COVE App vs ADF Test Trainer (JOA Prep)

The clearest difference is in-app purchases: COVE App at none against ADF Test Trainer (JOA Prep)'s 2. COVE App also leads on iOS requirement (11.0 vs 15.0). ADF Test Trainer (JOA Prep)'s advantage is update cadence (every 6 weeks vs every 4 months). On price, 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. COVE App asks for nothing beyond the download.

COVE App ships an update every 4 months, ADF Test Trainer (JOA Prep) every 6 weeks. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | COVE App | ADF Test Trainer (JOA Prep) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 156 MB | 172 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Australian Government Department of Defence](https://appshunter.io/developer/567919022) | [Seliant ApS](https://appshunter.io/developer/554676523) |

## What reviewers say

### COVE App

[App page](https://appshunter.io/ios/app/cove-app/id1477139170)

This platform connects defense members to professional development resources and events. It fosters a community for sharing knowledge, debating ideas, and promoting continuous learning within the profession of arms. Users can contribute their views and experiences to a wider network.

**Highlights:** Access professional military education resources, Connect with defense members, Share expertise and contest ideas, Promote continuous learning, Facilitates access to events

**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 COVE App free?

COVE App 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 COVE App or ADF Test Trainer (JOA Prep) have ads?

Neither COVE App nor ADF Test Trainer (JOA Prep) shows ads.

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

COVE App ships an update every 4 months, and ADF Test Trainer (JOA Prep) every 6 weeks. Most recently, COVE App was updated on November 3, 2026 and ADF Test Trainer (JOA Prep) on October 24, 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.*