# ADF Test Trainer (JOA Prep) vs ASVAB Prep

The clearest difference is update cadence: ASVAB Prep at weekly against ADF Test Trainer (JOA Prep)'s every 6 weeks. ADF Test Trainer (JOA Prep)'s advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases 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 and ASVAB Prep sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ADF Test Trainer (JOA Prep) ships an update every 6 weeks, ASVAB Prep weekly. The most recent releases landed on September 23, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | ADF Test Trainer (JOA Prep) | ASVAB Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/asvab-prep-practice-test/id6762491131/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 172 MB | 40 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Seliant ApS](https://appshunter.io/developer/554676523) | [Can Devecioglu](https://appshunter.io/developer/1727949528) |

## What reviewers say

### 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 |


### ASVAB Prep

[App page](https://appshunter.io/ios/app/asvab-prep-practice-test/id6762491131)

Prepare for international military aptitude tests with realistic simulations and detailed feedback. Train cognitive, numerical, verbal, and spatial reasoning skills with a comprehensive module library. Track your progress and improve speed and accuracy for exam success.

**Highlights:** Realistic exam timing, Adaptive difficulty, Step-by-step explanations, Progress tracking, Full exam simulation, Offline access, Comprehensive module library

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Monthly | $8.99 | per month |
| Lifetime | $8.99 | one-time |


## Frequently asked questions

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

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

### Is ASVAB Prep free?

ASVAB Prep is free to download, with in-app purchases available.

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

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

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

ADF Test Trainer (JOA Prep) ships an update every 6 weeks, and ASVAB Prep weekly. Most recently, ADF Test Trainer (JOA Prep) was updated on September 23, 2026 and ASVAB Prep on August 18, 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.*