# AB vs ISACA CISA Exam Prep

The clearest difference is ads: ISACA CISA Exam Prep at none against AB's shown. ISACA CISA Exam Prep also leads on update cadence (weekly 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 ISACA CISA Exam Prep 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, ISACA CISA Exam Prep weekly. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | AB | ISACA CISA Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 41 MB | 152 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 |


### ISACA CISA Exam Prep

[App page](https://appshunter.io/ios/app/isaca-cisa-exam-prep/id6785109686)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is AB free?

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

### Is ISACA CISA Exam Prep free?

ISACA CISA Exam Prep is free to download, with in-app purchases available.

### Do AB or ISACA CISA Exam Prep have ads?

AB shows ads; ISACA CISA Exam Prep does not.

### Which is updated more often, AB or ISACA CISA Exam Prep?

AB ships an update every 3 weeks, and ISACA CISA Exam Prep weekly. Most recently, AB was updated on September 30, 2026 and ISACA CISA Exam Prep on October 12, 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.*