Comparison

All vs PDF Compressor

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

Head to head
About

All

This comprehensive toolkit allows users to manipulate PDF files in numerous ways. Features include merging, splitting, deleting, rotating, converting to other formats, and securing documents with passwords. It also offers advanced editing like redaction and find/replace, along with watermarking and file size reduction.

Highlights
  • Merge and split PDF files
  • Delete and rotate PDF pages
  • Convert PDF to Word, PowerPoint, Excel, JPG
  • Add/remove password protection
  • Redact and find/replace text
  • Add text watermarks
  • Reduce PDF file size
Features
Read full description

All-About-PDF is the ultimate all-in-one PDF toolkit designed to help you work with PDF documents quickly, securely, and efficiently. Whether you need to edit, organize, convert, protect, or optimize your PDFs, All-About-PDF gives you powerful tools right from your device. Key Features • Merge multiple PDF files into a single document • Split PDFs by page range or page count • Reorder PDF pages with drag-and-drop simplicity • Delete unwanted pages from PDFs • Rotate PDF pages • Sign PDF documents electronically • Convert PDFs to: * Microsoft Word * Microsoft Excel * Microsoft PowerPoint * JPG Images • OCR (Optical Character Recognition) to extract searchable text from scanned PDFs and images • Add password protection to PDF documents • Remove passwords from PDFs you own • Add expiry dates to PDF documents • Redact sensitive text from PDFs • Find and replace text in PDFs • Add text watermarks to PDFs • Reduce and optimize PDF file sizes for sharing and storage Secure Processing All-About-PDF performs as much processing locally on your device as possible for speed and privacy. Some advanced features may securely use our cloud processing API when required. Documents processed through our secure cloud services are deleted automatically after processing is completed. We do not access, read, or harvest information from your documents. Built for Everyone Whether you’re a student, business professional, freelancer, teacher, or everyday user, All-About-PDF makes working with PDFs simple and powerful.

About

PDF Compressor

Features
Read full description

Compresso helps you reduce PDF file size quickly while keeping documents clear and readable. Compress, save space, and share smaller PDFs in just a few taps. Everything runs directly on your iPhone for speed and privacy. Key features: • Fast on-device PDF compression • Multiple compression levels for size vs quality • Preserve readability for text-heavy files • Works great for scans, reports, and forms • Simple, clean workflow: import, compress, share • Compression history for easy tracking • Optional Face ID app lock • Private processing — files stay on your device Pro subscription: Compresso Pro includes unlimited compression with Weekly or Annual plans. Subscription details: • Payment is charged to your Apple ID at confirmation of purchase • Subscription renews automatically unless canceled at least 24 hours before the end of the current period • Your account is charged for renewal within 24 hours before the end of the current period • You can manage or cancel your subscription anytime in App Store account settings Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://1kbapps.com/pdf-crush-support-privacy-terms/

Screenshots

All4 screens
PDF Compressor4 screens

Verdict

The call

The clearest difference is update cadence: All at every 4 days against PDF Compressor's every 3 months. All also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price, ads and in-app purchases 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. All sells 4 one-off in-app purchases and PDF Compressor sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

All ships an update every 4 days, PDF Compressor every 3 months. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.

Scorecard3 real differences · 7 level
All versus PDF Compressor: the parameters behind the verdict, then further details
ParameterAllPDF Compressor
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 4 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.6
Further details — not scored
Size13 MB2 MB
Age rating4+4+
DeveloperChristianSteven Software LLCVikram Singh

In-app purchases

4 purchases

All

One-time4
  • Process 25 PDF Files/Month$0.99
  • Remove Ads$0.99
  • Process 100 PDF Files/Month$2.99
Show 1 more
  • Unlimited PDF Processing$4.99
2 purchases

PDF Compressor

Subscriptions2
  • CrushPDF Premium Weekly$2.997 Days
  • CrushPDF Premium Annual$19.991 Year

Questions

Is All free?
All is free to download, with in-app purchases available.
Is PDF Compressor free?
PDF Compressor is free to download, with in-app purchases available.
Do All or PDF Compressor have ads?
Neither All nor PDF Compressor shows ads.
Which is updated more often, All or PDF Compressor?
All ships an update every 4 days, and PDF Compressor every 3 months. Most recently, All was updated on September 18, 2026 and PDF Compressor on September 17, 2026.

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