# Üstad vs Yengeç e

The clearest difference is ads: Üstad at none against Yengeç e's shown. Üstad also leads on iOS requirement (13.0 vs 16.0). Yengeç e's advantage is update cadence (every 2 weeks vs every 4 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Üstad ships an update every 4 weeks, Yengeç e every 2 weeks. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Üstad | Yengeç e |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Size | 43 MB | 64 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Üstad Teknoloji A.Ş.](https://appshunter.io/developer/1850126655) | [Salyangoz Teknoloji](https://appshunter.io/developer/1289450911) |

## What reviewers say

### Üstad

[App page](https://appshunter.io/ios/app/ustad/id6754793824)

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

**In-app purchases:** none


### Yengeç e

[App page](https://appshunter.io/ios/app/yengec-e-commerce-and-e-invoice/id6759354146)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Üstad free?

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

### Is Yengeç e free?

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

### Do Üstad or Yengeç e have ads?

Yengeç e shows ads; Üstad does not.

### Which is updated more often, Üstad or Yengeç e?

Üstad ships an update every 4 weeks, and Yengeç e every 2 weeks. Most recently, Üstad was updated on October 1, 2026 and Yengeç e on October 10, 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.*