# UniGib Engage vs OET Prep

The clearest difference is in-app purchases: UniGib Engage at none against OET Prep's 1. UniGib Engage also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). OET Prep's advantage is update cadence (every 2 weeks vs every 4 months). On price and ads there is nothing between them.

Both are free to download. OET Prep sells 1 one-off in-app purchase. UniGib Engage asks for nothing beyond the download.

UniGib Engage ships an update every 4 months, OET Prep every 2 weeks. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | UniGib Engage | OET Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Size | 29 MB | 40 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [University of Gibraltar](https://appshunter.io/developer/1577559216) | [Vytautas Jazbutis](https://appshunter.io/developer/1829284015) |

## What reviewers say

### UniGib Engage

[App page](https://appshunter.io/ios/app/unigib-engage/id1577558853)

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

**In-app purchases:** none


### OET Prep

[App page](https://appshunter.io/ios/app/oet-prep-nursing-practice/id6792228408)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OET Prep Pro Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is UniGib Engage free?

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

### Is OET Prep free?

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

### Do UniGib Engage or OET Prep have ads?

Neither UniGib Engage nor OET Prep shows ads.

### Which is updated more often, UniGib Engage or OET Prep?

UniGib Engage ships an update every 4 months, and OET Prep every 2 weeks. Most recently, UniGib Engage was updated on October 25, 2026 and OET Prep on October 29, 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.*