# Darussalam vs OT Prep

The clearest difference is in-app purchases: Darussalam at none against OT Prep's 3. Darussalam also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. OT Prep sells 3 in-app purchases, starting at $9.99 per month. Darussalam asks for nothing beyond the download.

## The numbers

| Metric | Darussalam | OT Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Size | 72 MB | 2 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Abdul Rahim](https://appshunter.io/developer/1563552848) | [MD Shahariar Nazim Joy](https://appshunter.io/developer/1893961943) |

## What reviewers say

### Darussalam

[App page](https://appshunter.io/ios/app/darussalam/id6757543793)

**Features:** macOS Compatibility

**In-app purchases:** none


### OT Prep

[App page](https://appshunter.io/ios/app/ot-prep-nbcot-practice/id6790671265)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $9.99 | per month |
| Annual Access | $49.99 | per year |
| Lifetime Access | $99.99 | one-time |


## Frequently asked questions

### Is Darussalam free?

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

### Is OT Prep free?

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

### Do Darussalam or OT Prep have ads?

Neither Darussalam nor OT 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.*