# ADF Test Trainer (JOA Prep) vs Bullshift

ADF Test Trainer (JOA Prep) and Bullshift are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. ADF Test Trainer (JOA Prep) sells 2 in-app purchases, starting at $9.99 per 7 days and Bullshift sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | ADF Test Trainer (JOA Prep) | Bullshift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 172 MB | 76 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seliant ApS](https://appshunter.io/developer/554676523) | [THE BULLSHIFT COMPANY PTY LTD](https://appshunter.io/developer/1323915599) |

## 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 |


### Bullshift

[App page](https://appshunter.io/ios/app/bullshift/id6771502664)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| The Shift Shed | $25.00 | 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 Bullshift free?

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

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

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*