Sign Documents vs PDFX
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Sign Documents
Read full descriptionHide full description
SignEdge makes it easy to sign documents on your iPhone. Scan paperwork, create your signature, add it to PDFs or documents, and send the finished file in just a few taps. Use SignEdge to: - Create and save your electronic signature - Scan paper documents and forms - Fill and sign PDFs or document files - Add signatures, initials, and stamps - Edit, highlight, and prepare documents for sharing - Export signed files whenever you need them Whether you are handling work forms, agreements, receipts, school papers, or everyday documents, SignEdge helps you move from file to signed document quickly. Privacy Policy: https://signedge.click/privacy Terms of Use: https://signedge.click/terms
PDFX
Read full descriptionHide full description
PDFX opens your PDFs so you can read, mark up, sign and fill them on your phone. There is no account and no server: files are opened, edited and recognized on your device, and your original file is never changed. READ β’ Open PDFs from Files, email or any app with βOpen in PDFXβ β’ Search the text, zoom in, and jump between pages β’ Big files open quickly, page by page β’ Password-protected PDFs open with the password MARK UP β’ Pen, marker and highlighter β the highlighter snaps to the text line β’ Add text, notes, boxes, circles, lines and arrows β’ White-out, images, eraser and undo β’ Every change saves as you go SIGN AND FILL FORMS β’ Draw your signature once and place it on any page β’ Type into form fields, tick checkboxes and choose options β’ Add β, Γ, β marks and todayβs date ORGANIZE PAGES β’ Rotate, delete, duplicate and reorder pages β’ Save selected pages as a new file β’ Add blank pages, photos or pages from another PDF β’ Merge several PDFs into one CONVERT AND SHARE β’ Turn photos into a PDF, or scan paper documents with the camera β’ Recognize text on a page and copy or share it β’ Reduce file size for email (pages are saved as images in the smaller copy) β’ Save pages as images, print, or share the finished PDF FREE WITH ADS, OR PRO PDFX is free with ads. PDFX Pro removes all ads. Choose a monthly subscription or a one-time lifetime purchase. Text recognition languages depend on your device. Privacy Policy: https://dsm0829.github.io/pdfx-privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Sign Documents at none against PDFX's shown. Sign Documents also leads on update cadence (daily vs weekly) and iOS requirement (13.0 vs 16.4). On price, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Sign Documents sells 2 in-app purchases, starting at $6.99 per 7 days and PDFX sells 2 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.
Sign Documents ships an update daily, PDFX weekly. The most recent releases landed on October 31, 2026 and October 26, 2026 respectively.
| Parameter | Sign Documents | PDFX |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily β better | Weekly |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 β better | 16.4 |
| Further details β not scored | ||
| Size | 42 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | OLLY ADAMS | YOU SEUNGMIN |
In-app purchases
Sign Documents
- Premium Subscription3 Days trial$6.997 Days
- Premium Subscription$49.991 Year
PDFX
- PDFX Pro Monthly$0.491 Month
- PDFX Pro Lifetime$5.99









