# ESTÜ vs CrewPrep

The clearest difference is in-app purchases: ESTÜ at none against CrewPrep's 2. CrewPrep's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CrewPrep sells 2 in-app purchases, starting at $19.99 per month. ESTÜ asks for nothing beyond the download.

ESTÜ ships an update every 3 weeks, CrewPrep every 2 days. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ESTÜ | CrewPrep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 29 MB | 70 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eskisehir Teknik Universitesi](https://appshunter.io/developer/1829406756) | [GOKCEN EMINE GURBUZ](https://appshunter.io/developer/1888714090) |

## What reviewers say

### ESTÜ

[App page](https://appshunter.io/ios/app/estu/id6749228751)

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

**In-app purchases:** none


### CrewPrep

[App page](https://appshunter.io/ios/app/crewprep/id6762461952)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CrewPrep Premium | $19.99 | per month |
| CrewPrep Premium Yıllık | $199.99 | per year |


## Frequently asked questions

### Is ESTÜ free?

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

### Is CrewPrep free?

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

### Do ESTÜ or CrewPrep have ads?

Neither ESTÜ nor CrewPrep shows ads.

### Which is updated more often, ESTÜ or CrewPrep?

ESTÜ ships an update every 3 weeks, and CrewPrep every 2 days. Most recently, ESTÜ was updated on October 6, 2026 and CrewPrep on October 24, 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.*