Comparison

PwMailExt vs PDF Scanner

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

Head to head
About

PwMailExt

This app extension provides an easy way to encrypt and exchange emails using a common key method. No complex setup is needed, and it's available for macOS, iPhone, and iPad.

Highlights
  • Email encryption
  • App Extension functionality
  • Common key encryption
  • Cross-platform compatibility (macOS, iOS)
  • Easy setup
Read full description

This is an email encryption app that works as an "App Extension". Since it uses a common key encryption method, no complicated steps are required to get started. By installing it on both sides, you can easily exchange encrypted emails. There is also an macOS version. The macOS version works as an extension of Mail.app.

About

PDF Scanner

Transform your phone into a powerful scanner with AI-powered OCR, PDF conversion, and e-signature capabilities. Securely manage and edit documents locally, perfect for office work, studying, and daily tasks.

Highlights
  • AI HD Document Scanning
  • Multi-mode Scanning
  • Smart Image Enhancement
  • Flexible PDF Conversion
  • Offline Multilingual OCR
  • PDF Signing & Annotation
  • Secure Local Storage
Features
Read full description

This app is an AI-powered document scanner that transforms your iPhone into a powerful mobile scanning tool with OCR recognition, PDF conversion, editing, and e-signature features. It helps you quickly scan documents, extract text, create PDFs, and manage files anytime, anywhere. Designed for office work, business tasks, studying, and daily document management, the app supports offline OCR and local file processing. Your scanned documents are stored securely on your device and are never automatically uploaded to the cloud, helping protect sensitive files such as IDs, contracts, receipts, and personal documents. Key Features 1. AI HD Document Scanning: Automatically detect document edges, correct perspective distortion, and remove backgrounds. Scan receipts, contracts, business cards, notes, and other documents while preserving original text clarity and layout. 2. Multi-mode Scanning: Supports standard documents, ID cards, and batch scanning modes. Capture multiple pages, automatically merge them, and quickly create organized PDF files. 3. Smart Image Enhancement: Improve scan quality with brightness adjustment, shadow removal, noise reduction, and detail enhancement. Create clear, print-ready scans even in challenging lighting conditions. 4. Flexible PDF Conversion: Convert images into PDF files instantly. Manage documents with features like PDF merging, splitting, page rearranging, and format conversion for easier workflow. 5. Offline Multilingual OCR: Recognize printed and handwritten text in multiple languages, including Chinese, English, Japanese, and Korean. Extracted text can be copied, edited, and reused without manual typing. 6. PDF Signing & Annotation: Sign documents directly from your device with handwritten signatures or digital stamps. Add highlights, notes, and marks to contracts and important files without printing. 7. Complete PDF Editing Tools: Edit PDFs with cropping, rotation, page adding, page deletion, watermark insertion, and page numbering. All operations are processed locally on your device. 8. Easy Export & Sharing: Save files locally and share documents through email, messaging apps, cloud storage, or other platforms. Adjust export quality and file size based on your needs. 9. Secure Local Storage: Scanned and edited files remain on your device without automatic cloud uploads. Keep sensitive documents such as financial records, contracts, receipts, and IDs protected. Use Cases Perfect for office workers managing expense reports, invoices, and meeting documents; HR teams organizing employee records and contracts; business professionals scanning, signing, and sharing agreements on the go; students extracting text from notes and study materials; field workers digitizing documents remotely; and merchants organizing receipts and business records. Whether for studying, office productivity, business operations, or everyday document management, this app provides a complete mobile scanning solution. Premium Subscription Information。 Upgrade to PDF Scanner Premium and remove daily limits to unlock the full power of our document scanner! ► Unlimited document scanning & offline multilingual OCR ► Higher scan precision, enhanced image optimization engine ► Full access to all PDF editing, conversion and annotation features ► Batch scanning, advanced PDF tools without restrictions ► No watermarks on exported files Subscription Plans • Weekly Subscription: $4.99 • Standard Annual Subscription: $39.99 • Limited-Time Discount Annual Subscription: $29.99 (Best Value) Contact Information For more information or app support, please contact us at: fengtao56@sina.com Terms of Use: https://www.xiaoyouhd.com/xypdf_user.html Privacy Policy: https://www.xiaoyouhd.com/xypdf_privacy.html

Screenshots

PwMailExt2 screens
PDF Scanner4 screens

Verdict

The call

The clearest difference is rating: PDF Scanner at 5.0 against PwMailExt's 1.0. PDF Scanner also leads on update cadence (weekly vs every 6 months) and ratings volume (10 vs 1). PwMailExt's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price 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. PDF Scanner sells 3 in-app purchases, starting at $9.99 per 7 days. PwMailExt asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PDF Scanner holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: PDF Scanner has 10 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

PwMailExt ships an update every 6 months, PDF Scanner weekly. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

Scorecard8 real differences · 1 level
PwMailExt versus PDF Scanner: the parameters behind the verdict, then further details
ParameterPwMailExtPDF Scanner
PriceFreeFree
Rating1.0 (1 ratings)5.0 (10 ratings) — better
Number of ratings110 — better
Update frequencyEvery 6 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS15.5 — better17.0
Further details — not scored
Size5 MB34 MB
Age rating4+4+
Developer敬太 NodaXiaoyou Interactive

In-app purchases

None

PwMailExt

No in-app purchases

3 purchases

PDF Scanner

Subscriptions3
  • Week3 Days trial$9.997 Days
  • Yearly$29.991 Year
  • Yearly$49.991 Year

Questions

Is PwMailExt free?
PwMailExt is free to download, with no in-app purchases.
Is PDF Scanner free?
PDF Scanner is free to download, with in-app purchases available.
Which has better reviews, PwMailExt or PDF Scanner?
PDF Scanner is rated higher. PwMailExt averages 1.0 out of 5 from 1 ratings, while PDF Scanner averages 5.0 from 10 ratings.
Do PwMailExt or PDF Scanner have ads?
PDF Scanner shows ads; PwMailExt does not.
Which is updated more often, PwMailExt or PDF Scanner?
PwMailExt ships an update every 6 months, and PDF Scanner weekly. Most recently, PwMailExt was updated on October 27, 2026 and PDF Scanner on October 31, 2026.

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