# AB vs AB

The clearest difference is iOS requirement: AB at 15.1 against AB's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. AB sells 4 one-off in-app purchases and AB sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

AB ships an update weekly, AB every 9 days. The most recent releases landed on August 2, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | AB | AB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/ab-900-practice-test/id6761790039/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 12 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Baric](https://appshunter.io/developer/1872894014) | [Atsuhiro Inoue](https://appshunter.io/developer/1871193294) |

## What reviewers say

### AB

[App page](https://appshunter.io/ios/app/ab-900-practice-test/id6761790039)

Prepare for the Microsoft 365 Copilot and Agent Administration Fundamentals exam with daily practice questions. Target weak areas, review explanations, and track your progress towards exam readiness with timed sessions.

**Highlights:** Daily practice questions, Targeted domain practice, Review explanations, Track exam readiness, Timed practice sessions, Progress tracking

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AB-900 Pro | $2.99 | one-time |
| AB-900 Pro | $4.99 | one-time |
| Microsoft Business AI Bundle | $6.99 | one-time |
| Azure AI Bundle | $9.99 | one-time |


### AB

[App page](https://appshunter.io/ios/app/ab-900-prep-m365-admin/id6776277539)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Questions | $12.99 | one-time |


## Frequently asked questions

### Is AB free?

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

### Is AB free?

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

### Do AB or AB have ads?

Neither AB nor AB shows ads.

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

AB ships an update weekly, and AB every 9 days. Most recently, AB was updated on August 2, 2026 and AB on September 13, 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.*