Comparison

Batch PDF Compressor SquashPDF vs PDF Studio

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

Head to head
About

Batch PDF Compressor SquashPDF

This tool efficiently reduces PDF file sizes without compromising quality. It allows users to select a target file size and offers batch compression for multiple documents. A preview feature helps verify quality before saving.

Highlights
  • Compress single or multiple PDFs
  • Select target file size
  • Batch compression
  • Side-by-side quality preview
  • Local history of compressions
Features
Read full description

SquashPDF is a fast PDF compressor for iOS that shrinks PDF file size without destroying quality. Reduce a 50 MB contract to under 5 MB, fit a scanned passport into an email attachment, or hit a strict upload limit. What SquashPDF does - Compresses single or multiple PDFs in one tap - Lets you pick a target size (e.g. under 1 MB, under 5 MB, under 10 MB) instead of guessing quality levels - Batch-compresses entire folders of PDFs at once - Shows a side-by-side preview so you can verify quality before saving - Keeps a history of every compression with original vs. final size FAQ -> How much can SquashPDF reduce a PDF? Typically 60–90% for image-heavy PDFs (scans, photos). Text-only PDFs see smaller reductions because text is already efficiently encoded. -> Does SquashPDF work offline? No. Files are uploaded to our server for processing, they are not tied to your identity and are automatically deleted after two hours. -> Will compression ruin the quality of my PDF? No. Pick a target size and SquashPDF balances quality automatically. Use the side-by-side preview to compare before saving. -> Can I compress multiple PDFs at once? Yes. Batch mode compresses dozens of PDFs in one run and saves them with the original filenames. -> Is SquashPDF free? Core compression is free (daily limit of 1 pdf). SquashPDF Pro unlocks unlimited batch compression, larger files, and removes limits. -> Which file types are supported? PDF only. For best results, use SquashPDF on PDFs containing scans, photos, or screenshots — that's where the biggest savings come from. Download SquashPDF and stop fighting upload limits. Terms of use - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PDF Studio

Features
Read full description

PDF Studio — your complete PDF solution for iPhone and iPad. Scan, edit, sign, convert, and manage documents with professional-grade tools, all in one app. SCAN & DIGITIZE • Intelligent document scanner with auto-edge detection • Multi-page scanning in seconds • High-quality PDF output from any paper document EDIT & ANNOTATE • Add text, images, and shapes to any PDF • Highlight, underline, and strike through text • Draw and sketch with precision tools • Reorder, rotate, and delete pages SIGN DOCUMENTS • Create and save multiple signatures • Sign contracts, forms, and agreements instantly • Professional digital signatures CONVERT ANYTHING • PNG, JPG, HEIC, WebP → PDF • PDF → PNG, JPG images • TXT ↔ PDF conversion • Batch convert multiple files COMPRESS & OPTIMIZE • Reduce PDF size up to 70% • Three compression levels: Light, Medium, Maximum • Perfect for email attachments and sharing POWERFUL TOOLS • OCR: Extract text from images and scans • Merge: Combine multiple PDFs into one • Split: Separate PDF into individual pages • Print: Direct printing to any AirPrint device ORGANIZE YOUR FILES • Create folders and organize documents • Quick search across all files • Favorites for fast access • Recent files tracking CLOUD SYNC • Automatic iCloud synchronization • Access documents on all your Apple devices • Secure cloud backup WHY PDF STUDIO? No watermarks on your documents Works offline — no internet required Privacy first — files stay on your device Clean, intuitive interface Regular updates with new features Perfect for students, professionals, and anyone who works with documents. Download PDF Studio and take control of your PDFs today! Download PDF Studio today and experience the most powerful PDF toolkit for iOS! Terms of Use: https://github.com/spiroba/pdf-studio-legal/blob/main/TERMS_OF_USE.md

Screenshots

Batch PDF Compressor SquashPDF4 screens
PDF Studio4 screens

Verdict

The call

The clearest difference is update cadence: PDF Studio at every 2 weeks against Batch PDF Compressor SquashPDF's every 4 weeks. 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. Batch PDF Compressor SquashPDF sells 3 in-app purchases, starting at $3.99 per month and PDF Studio sells 3 in-app purchases, starting at $2.49 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Batch PDF Compressor SquashPDF ships an update every 4 weeks, PDF Studio every 2 weeks. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

Scorecard1 real difference · 9 level
Batch PDF Compressor SquashPDF versus PDF Studio: the parameters behind the verdict, then further details
ParameterBatch PDF Compressor SquashPDFPDF Studio
PriceFreeFree
Rating3.5 (2 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.6 — better17.6
Further details — not scored
Size27 MB6 MB
Age rating4+4+
DeveloperYash MandhyanBoris Spiro

In-app purchases

3 purchases

Batch PDF Compressor SquashPDF

Subscriptions3
  • Monthly Plan$3.991 Month
  • Weekly Subscription$4.997 Days
  • Yearly Subscription$14.991 Year
3 purchases

PDF Studio

Subscriptions3
  • Weekly Premium$2.497 Days
  • Monthly Premium$4.991 Month
  • Annual Premium$29.991 Year

Questions

Is Batch PDF Compressor SquashPDF free?
Batch PDF Compressor SquashPDF is free to download, with in-app purchases available.
Is PDF Studio free?
PDF Studio is free to download, with in-app purchases available.
Do Batch PDF Compressor SquashPDF or PDF Studio have ads?
Neither Batch PDF Compressor SquashPDF nor PDF Studio shows ads.
Which is updated more often, Batch PDF Compressor SquashPDF or PDF Studio?
Batch PDF Compressor SquashPDF ships an update every 4 weeks, and PDF Studio every 2 weeks. Most recently, Batch PDF Compressor SquashPDF was updated on September 22, 2026 and PDF Studio on September 14, 2026.

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