# AB vs AZ

The clearest difference is ads: AZ at none against AB's shown. AZ also leads on update cadence (every 3 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. AB sells 3 one-off in-app purchases and AZ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

AB ships an update every 3 weeks, AZ every 3 days. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AB | AZ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 41 MB | 190 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Baric](https://appshunter.io/developer/1872894014) | [CHOI SEONGMIN](https://appshunter.io/developer/6772332527) |

## What reviewers say

### AB

[App page](https://appshunter.io/ios/app/ab-731-practice-test/id6761743560)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AB-731 Pro | $2.99 | one-time |
| AB-731 Pro | $4.99 | one-time |
| Microsoft Business AI Bundle | $6.99 | one-time |


### AZ

[App page](https://appshunter.io/ios/app/az-305-infrastructure-prep/id6782107869)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AZ-305 Lifetime Access | $4.99 | one-time |


## Frequently asked questions

### Is AB free?

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

### Is AZ free?

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

### Do AB or AZ have ads?

AB shows ads; AZ does not.

### Which is updated more often, AB or AZ?

AB ships an update every 3 weeks, and AZ every 3 days. Most recently, AB was updated on October 16, 2026 and AZ on October 25, 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.*