# KOSKİ vs Udf Editör

The clearest difference is in-app purchases: KOSKİ at none against Udf Editör's 2. KOSKİ also leads on update cadence (fortnightly vs every 6 months). Udf Editör's advantage is iOS requirement (11.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Udf Editör sells 2 in-app purchases, starting at $3.99 per month. KOSKİ asks for nothing beyond the download.

KOSKİ ships an update fortnightly, Udf Editör every 6 months. The most recent releases landed on September 21, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | KOSKİ | Udf Editör |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/udf-editor/id1539206411/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 18.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 months |
| Monetization | — | Subscription |
| Size | 61 MB | 151 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KOSKİ](https://appshunter.io/developer/1512236255) | [Safak Yazilim](https://appshunter.io/developer/1024967736) |

## What reviewers say

### KOSKİ

[App page](https://appshunter.io/ios/app/koski/id1512236646)

**Features:** Vision Pro support

**In-app purchases:** none


### Udf Editör

[App page](https://appshunter.io/ios/app/udf-editor/id1539206411)

Create, edit, and sign UDF documents on your mobile device. Convert other document formats to UDF, perform word checks, and share your work as PDF or UDF. Print wirelessly via AirPrint.

**Highlights:** Edit UDF documents, Electronic signing with mobile signature, Convert Docx, Doc, Odt to UDF, Word check and proofreading, Share as UDF or PDF, Print via AirPrint, Create, copy, move, delete documents

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aylık Abonelik | $3.99 | per month |
| Yıllık Abonelik | $39.99 | per year |


## Frequently asked questions

### Is KOSKİ free?

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

### Is Udf Editör free?

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

### Do KOSKİ or Udf Editör have ads?

Neither KOSKİ nor Udf Editör shows ads.

### Which is updated more often, KOSKİ or Udf Editör?

KOSKİ ships an update fortnightly, and Udf Editör every 6 months. Most recently, KOSKİ was updated on September 21, 2026 and Udf Editör on July 5, 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.*