Comparison

Sign PDF vs 龙嘉SCM供应商

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Apply signature to PDF
  • Export as PDF
  • PDF to JPEG conversion
  • Print from device
  • Share via email
  • Multiple signature creation modes
Features
Read full description

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

About

龙嘉SCM供应商

Features
Read full description

移动办公,提高效率!

Screenshots

Sign PDF4 screens
龙嘉SCM供应商3 screens

Verdict

The call

The clearest difference is in-app purchases: 龙嘉SCM供应商 at none against Sign PDF's 3. 龙嘉SCM供应商 also leads on update cadence (every 4 months vs every 69 months) and iOS requirement (12.0 vs 17.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sign PDF sells 3 in-app purchases, starting at $3.99 per 7 days. 龙嘉SCM供应商 asks for nothing beyond the download.

UpkeepUpdate frequency

Sign PDF ships an update every 69 months, 龙嘉SCM供应商 every 4 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 5 level
Sign PDF versus 龙嘉SCM供应商: the parameters behind the verdict, then further details
ParameterSign PDF龙嘉SCM供应商
PriceFreeFree
Positive reviews7.1% of reviews—
Update frequencyEvery 69 monthsEvery 4 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.012.0 — better
Further details — not scored
Size3 MB35 MB
Age rating4+4+
DeveloperMatteo Morelli文朗 梁

In-app purchases

3 purchases

Sign PDF

Subscriptions2
  • Firma Pro Weekly3 Days trial$3.997 Days
  • Firma Pro Yearly$22.991 Year
One-time1
  • Firma Pro Lifetime$49.99
None

龙嘉SCM供应商

No in-app purchases

Questions

Is Sign PDF free?
Sign PDF is free to download, with in-app purchases available.
Is 龙嘉SCM供应商 free?
龙嘉SCM供应商 is free to download, with no in-app purchases.
Do Sign PDF or 龙嘉SCM供应商 have ads?
Neither Sign PDF nor 龙嘉SCM供应商 shows ads.
Which is updated more often, Sign PDF or 龙嘉SCM供应商?
Sign PDF ships an update every 69 months, and 龙嘉SCM供应商 every 4 months. Most recently, Sign PDF was updated on November 1, 2026 and 龙嘉SCM供应商 on October 26, 2026.

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