iZip.com vs Sign PDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iZip.com
Easily view and manage ZIP, ZIPX, RAR, and 7ZIP files directly on your iOS device. Access password-protected archives without any limitations. All features are available for free.
- View ZIP, ZIPX, RAR, 7ZIP files
- Access password-protected archives
- Local file processing
- No limitations
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iZip is the easiest way to view ZIP, ZIPX, RAR and 7ZIP files on your iOS device. Best of all it's completely free so you can access your files (even WinZip password protected versions) without limitations! Note: while the app is called iZip.com, it isn't a web service. Your files are processed locally on your iPhone or iPad. For more information about iZip please visit www.izip.com
Sign PDF
Easily add your signature to PDF documents using your device. Create signatures by taking a photo, using special fonts, drawing on screen, or importing an image. Export signed documents as PDFs or JPEGs, and print or share them directly.
- Apply signature to PDF
- Export as PDF
- PDF to JPEG conversion
- Print from device
- Share via email
- Multiple signature creation modes
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Sign a PDF and send it back in under a minute — without leaving your iPhone. Sign PDF is the fast, private way to sign documents, fill forms and get paperwork done. Import a PDF, tap where to sign, and share the finished file. No account, no uploads, no waiting. WHY YOU'LL LOVE IT • Sign any PDF or document in seconds • Everything happens on your device — nothing is ever uploaded • Works completely offline • No sign-up, no subscription required to get started • Exports a clean, flattened PDF — never watermarked SIGN YOUR WAY • Draw your signature with a finger or Apple Pencil • Snap a photo of your signature on paper — the background is removed automatically • Type your name in a handwritten-style font • Save multiple signatures and initials, then reuse them with one tap FILL & COMPLETE • Add free-form text boxes anywhere, with size and color control • Quick Fields: save your name, company, email and address once, insert them instantly • Date tool with auto-today and your preferred format • Add checkmarks and X-marks to tick boxes • Fill interactive form fields (AcroForm) IMPORT FROM ANYWHERE • Open PDFs straight from Mail, Files or iCloud Drive • Scan paper documents with your camera • Turn photos into a PDF EXPORT & SHARE • Flatten and share via the standard share sheet • Print, or save back to Files • The original document is never changed until you export FREE VS PRO Free: sign documents every month, one saved signature, text and date tools included, full-quality export. Pro unlocks: unlimited documents, the document scanner, photo and typed signature capture, multiple signatures and initials, Quick Fields and interactive form filling. PRIVACY FIRST Your documents are yours. Sign PDF has no backend and no account system. Files stay in the app, protected on your device, and are never sent to a server. Sign contracts, agreements and sensitive paperwork with total peace of mind — even in airplane mode. Download Sign PDF and turn your iPhone into a pocket signing tool. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://keysersoft.com/signpdf/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: iZip.com at none against Sign PDF's 3. iZip.com also leads on review sentiment (40% vs 7%) and update cadence (every 3 weeks vs every 69 months). On price, ads, monetization model 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. Sign PDF sells 3 in-app purchases, starting at $3.99 per 7 days. iZip.com asks for nothing beyond the download.
iZip.com ships an update every 3 weeks, Sign PDF every 69 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | iZip.com | Sign PDF |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (40 ratings) — better | — |
| Positive reviews | 39.7% of reviews — better | 7.1% of reviews |
| Number of ratings | 40 — better | — |
| Update frequency | Every 3 weeks — better | Every 69 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 5.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | iBoostUp Pty Ltd | Matteo Morelli |
Customer experience
iZip.com
Sign PDF
In-app purchases
iZip.com
No in-app purchases
Sign PDF
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