# AI vs AB

The clearest difference is ads: AB at none against AI's shown. AB also leads on update cadence (every 9 days vs every 3 weeks). AI's advantage is iOS requirement (15.6 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. AI sells 3 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.

AI ships an update every 3 weeks, AB every 9 days. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | AI | AB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 184 MB | 12 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [合同会社HopStep](https://appshunter.io/developer/1749721044) | [Nichful](https://appshunter.io/developer/1871193294) |

## What reviewers say

### AI

[App page](https://appshunter.io/ios/app/ai-901-study-and-practice/id6759863242)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Complete Pack - Sale | $5.99 | one-time |
| Complete Pack | $9.99 | one-time |
| Lifetime Premium | $11.99 | 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 AI free?

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

### Is AB free?

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

### Do AI or AB have ads?

AI shows ads; AB does not.

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

AI ships an update every 3 weeks, and AB every 9 days. Most recently, AI was updated on October 24, 2026 and AB on October 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.*