UDF Studio vs Evrak
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UDF Studio
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UDF Studio is the complete, native toolkit for UYAP UDF documents on Mac, iPhone, and iPad — and everything is free. VIEW • Open and read UYAP UDF files with faithful formatting • Full-text search • Verify electronic signatures — signer, certificate and validity • Quick Look and Share extension support CREATE & EDIT • Create new UDF documents and edit existing ones • Bold, italic, underline, alignment, numbered and bulleted lists • Tables, form fields and images in existing documents are preserved when you save CONVERT & MERGE • Convert PDF, Word and images to UDF • Merge multiple files into a single UDF PDF & TIFF TOOLS • Open multi-page TIFF and PDF files • Reorder, rotate and delete pages, then export as PDF E-SIGNATURE (macOS) • Electronically sign with your e-signature token (smart card) Everything is free and runs entirely on your device — your documents are never uploaded.
Evrak
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Open UDF files on your iPhone, preview them and convert them to PDF. View your first UDF document and export it as PDF for free. Opening and exporting additional UDF documents requires Pro access. FROM UDF TO SHAREABLE PDF • Choose a supported .udf document from the Files app. • Check text, tables and page layout in the preview. • Export the whole document or selected pages as a PDF. • Save the PDF to Files or send it using the iOS share sheet. • Find, rename and manage documents in your local archive. DOCUMENTS ARE PROCESSED ON YOUR DEVICE UDF preview and PDF creation happen on your device. Document contents and file names are not sent to our servers or RevenueCat. Downloading cloud files, purchases and access verification may require an internet connection. Services you share to have their own terms. ACCESS THAT FITS YOUR NEEDS Your first UDF document is free to view and export as PDF. The same document stays free when reopened. The included sample and PDF viewing are also free. To view and export other UDF documents, choose: • 24-hour access: starts at purchase and does not renew automatically. • Annual Pro: one year of access for regular use; renews automatically unless canceled. The price and period are shown on Apple's purchase confirmation screen. Payment is charged to your Apple Account. You can turn off annual subscription renewal in Apple's subscription settings at least 24 hours before the current period ends. You can restore purchases in the app. SUPPORTED DOCUMENTS Supported text, basic formatting, tables and PNG/JPEG images in UDF 1.7/1.8 documents. Limits: 20 MB per file and 100 pages per document. Some advanced elements are not supported; output layout may differ. Before sharing an important petition or other document, check the PDF and keep the original. Evrak is a document viewer and UDF-to-PDF converter. It does not provide document editing, PDF-to-UDF conversion, electronic signature verification or submission of documents to UYAP. A PDF copy does not carry the original UDF's electronic signature as a valid electronic signature. Evrak is an independent app and is not affiliated with UYAP or the Turkish Ministry of Justice. Support: https://evrak.app/destek Privacy: https://evrak.app/gizlilik Terms: https://evrak.app/kosullar The linked support and policy pages are currently in Turkish. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: UDF Studio at none against Evrak's 2. UDF Studio also leads on device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Evrak sells 2 in-app purchases, starting at $19.99 per year. UDF Studio asks for nothing beyond the download.
| Parameter | UDF Studio | Evrak |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 9 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 16.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 2 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Eymex | Teddy App Labs, LLC |
In-app purchases
UDF Studio
No in-app purchases
Evrak
- Evrak Annual Pro$19.991 Year
- 24-Hour Access$1.99







