Comparison

Sign & Seal vs PDF Stamp & Seam Stamp & Sign

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

Head to head
About

Sign & Seal

Features
Read full description

Sign & Seal is a professional PDF stamping and signing studio for creating digital stamps, signatures, seals, and document workflows on your device. Create custom stamps from scratch, draw or type signatures, scan real stamps from photos, and place them directly onto PDF documents. For repeated work, build reusable templates that apply stamps and signatures to the right pages automatically. For high-volume workflows, process multiple PDF files in batch and export the finished documents together. Create stamps and seals - Design digital stamps with text, shapes, borders, colors, and official-looking layouts. - Create business stamps, approval stamps, document control stamps, signatures, initials, and seals. - Keep all created assets in a reusable stamp and signature library. Sign and stamp PDFs - Open a PDF and place stamps or signatures on any page. - Drag, resize, rotate, and adjust placed assets. - Preview the final look before exporting. - Save stamped PDFs to your device. Templates for repeated PDF workflows - Build stamping templates for contracts, forms, invoices, approvals, and office documents. - Apply stamps and signatures to first pages, body pages, last pages, or every page. - Reuse the same layout whenever you process similar documents. Batch PDF processing - Select multiple PDF files. - Apply one template across the entire batch. - Review processed documents. - Save the batch to history or export all processed PDFs as a ZIP file. Scan stamps and signatures - Import a photo of a physical stamp or handwritten signature. - Extract the ink from the background. - Turn real-world marks into reusable digital assets. Saved history - Keep a local history of saved documents. - Preview completed PDFs later. - Re-export saved PDFs when needed. - Review batch results from a single saved history item. Privacy-first document processing Sign & Seal is built for sensitive document work. PDF stamping, rendering, and export happen locally on your device. Your documents are not uploaded to a cloud server by the app. Use Sign & Seal to create, apply, save, and export polished stamped PDFs for contracts, forms, approvals, invoices, office documents, and recurring document workflows. Terms of Use By downloading or using this app, you agree to the Apple Standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PDF Stamp & Seam Stamp & Sign

Easily add stamps and handwritten electronic signatures to PDF documents. Process contracts and agreements efficiently without printing or scanning, keeping your data secure locally on your device.

Highlights
  • Smart PDF stamping
  • Across-page seal generation
  • Handwritten electronic signatures
  • Batch stamping and signing
  • Local data processing
  • Seamless document import/export
Features
Read full description

【PDF Stamp】: Supports single‑page stamping and multi‑page batch stamping for round official seals, oval stamps and square stamps. 【Cross‑Page Seal】: Supports cross‑page stamping, automatically applying the seal on the edge of each page. 【Stamp Effects】: Provides stamp aging and imprint effect adjustments to replicate the real ink‑stamping look on physical paper. 【Stamp Creation】: Three stamp‑making options: extract seal from photo, import seal image, or generate seal by entering company information. 【Handwritten Signature】: Supports handwritten signatures with adjustable stroke thickness and font size. 【Secure & Reliable】: All processing is done locally. No private data is collected to fully protect your data security. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Sign & Seal4 screens
PDF Stamp & Seam Stamp & Sign4 screens

Verdict

The call

The clearest difference is iOS requirement: Sign & Seal at 13.0 against PDF Stamp & Seam Stamp & Sign's 15.0. On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sign & Seal sells 2 in-app purchases, starting at $0.99 per 7 days and PDF Stamp & Seam Stamp & Sign sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 7 level
Sign & Seal versus PDF Stamp & Seam Stamp & Sign: the parameters behind the verdict, then further details
ParameterSign & SealPDF Stamp & Seam Stamp & Sign
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequency—Weekly
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.0 — better15.0
Further details — not scored
Size72 MB7 MB
Age rating4+4+
DeveloperTevfik AsginHangzhou Niufen Network Technology Co., Ltd.

In-app purchases

2 purchases

Sign & Seal

Subscriptions2
  • Sign & Seal Plus Weekly3 Days trial$0.997 Days
  • Sign & Seal Pro Weekly3 Days trial$2.497 Days
3 purchases

PDF Stamp & Seam Stamp & Sign

Subscriptions2
  • E‑Stamp Service$3.991 Month
  • 盖章年卡$9.991 Year
One-time1
  • 无纸盖章永久版$14.99

Questions

Is Sign & Seal free?
Sign & Seal is free to download, with in-app purchases available.
Is PDF Stamp & Seam Stamp & Sign free?
PDF Stamp & Seam Stamp & Sign is free to download, with in-app purchases available.
Do Sign & Seal or PDF Stamp & Seam Stamp & Sign have ads?
Neither Sign & Seal nor PDF Stamp & Seam Stamp & Sign shows ads.

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