PDF Scanner ⋅ vs Sign PDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Scanner ⋅
Easily scan, edit, and sign PDF documents directly from your phone. Features include auto-cropping, form filling, highlighting, and printing capabilities. Organize and manage your scanned documents efficiently.
- Document scanning with auto-cropping
- Edit and fill PDF forms
- Markup and highlight PDFs
- Digital signature functionality
- Organize and save scans
- Print PDFs wirelessly
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PDF Scanning App is the simple and easy way to scan & edit pdf documents from your phone. Features include: • Point and shoot PDF document camera scanning • Edit and fill out PDF document forms fields • Markup and highlight PDF documents • Sign PDF documents with your signature • Save and organize your PDF scans • Print PDF scans over Wifi to Printer • Supports AirPrint and other printing protocols • Auto document surface detection and cropping • Simple and easy to use Terms of Use: https://silverelmsys.com/pdfscanner/terms_of_use.html Privacy Policy: https://silverelmsys.com/pdfscanner/privacy_policy.html
Sign PDF
Easily and securely sign PDF documents directly from your mobile device. Add notes and comments to PDFs and share them quickly. Ideal for on-the-go document signing.
- Sign PDF documents quickly
- Secure and reliable signing
- Intuitive user interface
- Add notes and comments
- Share signed PDFs easily
- Sign on the go
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Sign PDF Document turns your iPhone and iPad into a complete PDF office: sign contracts in seconds, fill out forms, scan paper documents and keep everything organized — without printing a single page. SIGN, YOUR WAY • Draw your signature with your finger or Apple Pencil and place it anywhere on the page • Sign with a digital certificate (PAdES): import your .p12 or create one right in the app • Add initials, dates, checkmarks and text • Your signatures are stored securely on your device, ready to reuse FILL AND EDIT • Fill out interactive PDF forms • Add text, highlights and annotations • Stamp images onto any page SCAN AND CONVERT • Scan paper documents with your camera, with automatic edge detection • Run OCR to turn scans into searchable text • Convert Word documents and photos to PDF ORGANIZE AND PROTECT • Merge several PDFs into one and reorder, rotate or delete pages • Compress heavy PDFs so they are easy to share • Lock documents with a password — or remove a password you know CLOUD AND AI • Open and save files in iCloud, Google Drive and OneDrive • Ask the built-in AI Assistant about the document you are reading: summaries, answers, key data in seconds MADE FOR REAL LIFE • Available in 45 languages • The core tools work offline: your documents stay on your device unless you decide to share them PREMIUM FOR LIFE — NO SUBSCRIPTIONS One single purchase unlocks everything, forever. No recurring payments, no account required. A lease, an invoice, a school form or a job contract: sign it and send it back before your coffee gets cold.
Screenshots
Verdict
The clearest difference is ads: PDF Scanner ⋅ at none against Sign PDF's shown. PDF Scanner ⋅ also leads on iOS requirement (14.1 vs 16.0). Sign PDF's advantage is rating (4.9 vs 4.6) and update cadence (every 6 days vs fortnightly). On price, ratings volume, in-app purchases and device support 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. PDF Scanner ⋅ sells 1 one-off in-app purchase and Sign PDF sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Sign PDF holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 10 and 18 respectively.
PDF Scanner ⋅ ships an update fortnightly, Sign PDF every 6 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | PDF Scanner ⋅ | Sign PDF |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (10 ratings) | 4.9 (18 ratings) — better |
| Positive reviews | — | 25.0% of reviews |
| Number of ratings | 10 | 18 — better |
| Update frequency | Fortnightly | Every 6 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 12 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Silver Elm Systems LLC | Raquel Martinez Figueirido |
Customer experience
PDF Scanner ⋅
Sign PDF
In-app purchases
PDF Scanner ⋅
- PDF Scanner Premium$29.99
Sign PDF
- Premium Plan$9.99
Questions
Is PDF Scanner ⋅ free?
Is Sign PDF free?
Which has better reviews, PDF Scanner ⋅ or Sign PDF?
Do PDF Scanner ⋅ or Sign PDF have ads?
Which is updated more often, PDF Scanner ⋅ or Sign PDF?
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