# AOSB vs RAF Aptitude Prep

The clearest difference is in-app purchases: AOSB at none against RAF Aptitude Prep's 3. AOSB also leads on iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. RAF Aptitude Prep sells 3 in-app purchases, starting at $4.99 per month. AOSB asks for nothing beyond the download.

## The numbers

| Metric | AOSB | RAF Aptitude Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 12 MB | 4 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [George Lee](https://appshunter.io/developer/1295254226) | [MD Shahariar Nazim Joy](https://appshunter.io/developer/1893961943) |

## What reviewers say

### AOSB

[App page](https://appshunter.io/ios/app/aosb/id6762511460)

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

**In-app purchases:** none


### RAF Aptitude Prep

[App page](https://appshunter.io/ios/app/raf-aptitude-prep/id6792479893)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $14.99 | per year |
| Lifetime Access | $19.99 | one-time |


## Frequently asked questions

### Is AOSB free?

AOSB is free to download, with no in-app purchases.

### Is RAF Aptitude Prep free?

RAF Aptitude Prep is free to download, with in-app purchases available.

### Do AOSB or RAF Aptitude Prep have ads?

Neither AOSB nor RAF Aptitude Prep shows ads.

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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.*