InfinitePadPro vs Combine PDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
InfinitePadPro
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The professional version of Infinity Drawing Board is here. It's still Infinity Drawing Board now, but... 1.Cloud backup function has been added 2.Screen adaptation has been added 3.Added iPad adaptation 4.The thumbnail function has been added 5.More functions will be continuously added in the future. Stay tuned...
Combine PDF
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Combine PDF - Merge PDF is your all-in-one PDF toolkit for combining documents, edit pages, compress files, add watermarks, scan papers, and manage everything in one clean app. Whether you're merging reports for work, organizing study notes, preparing business documents, managing contracts, combining invoices, or creating shareable PDF files, Merge PDF makes it fast and simple. Pick files from the Files app, reorder them, and combine into a single PDF in just a few taps. Designed for students, professionals, teachers, business owners, office workers, freelancers, and everyday users, Merge PDF provides powerful PDF tools in a simple and intuitive interface. MERGE PDF FILES • Combine multiple PDFs into one document • Import files from Files with multi-select • Drag to reorder before merging • Remove unwanted files from the list • Share your merged PDF instantly • Auto-saved to My Creation for easy access • Quickly organize files before exporting • Preserve original PDF quality during merging EDIT & ANNOTATE • Highlight text with color options • Draw freehand notes on any page • Add and reposition text anywhere • Select and copy text from PDFs • Undo annotations and save a new copy • Mark important sections for review • Add comments and visual notes to documents • Ideal for study material, contracts, manuals, and reports • Create personalized annotated PDF copies READ & VIEW • Built-in PDF reader with smooth scrolling • Open password-protected documents • Quickly browse multi-page PDFs • Read documents comfortably on iPhone and iPad • Smooth navigation between pages • View documents without needing third-party apps SPLIT & ORGANIZE • Split by fixed page count or custom ranges (e.g. 1–3, 5, 8–10) • Rearrange pages with drag-and-drop • Remove unwanted pages • Rotate all pages 90°, 180°, or 270° • Create smaller PDFs from larger documents • Organize pages exactly how you need them • Remove unnecessary content before sharing • Prepare custom document versions for clients, teams, or personal use WATERMARK, STAMP & PAGE NUMBERS • Add custom watermarks with opacity, size, and angle control • Single or tiled watermark across every page • Add bold stamps like APPROVED or CONFIDENTIAL • Add "Page X of Y" numbers in your chosen position • Protect document ownership with custom branding • Apply consistent page numbering throughout documents • Customize watermark appearance for professional results • Great for business reports, contracts, and official documents CREATE PDFs • Convert photos to PDF • Scan documents with your camera and export as PDF • Choose A4 or Letter page size with adjustable margins • Turn receipts, notes, forms, and paperwork into PDFs • Create professional-looking PDF documents from images • Combine multiple photos into a single PDF file • Save and share scanned documents instantly • Perfect for digitizing paper documents COMPRESS & PROTECT • Reduce file size with Low, Medium, or High compression • Add password protection to secure your PDF • Remove password and save an unlocked copy • Share smaller files more easily • Optimize PDFs for email and online sharing • Protect sensitive documents from unauthorized access • Balance quality and file size according to your needs • Manage document security with ease PRINT & SHARE • Print PDFs with native iOS print options • Share any file via the iOS Share Sheet • Export files quickly and efficiently • Share work, study, and personal documents in seconds • Compatible with standard iOS sharing workflows MY CREATION • All exported PDFs saved in one place • Open, share, swipe to delete, or bulk delete • Re-open saved files in any tool • Easily manage previously created documents • Quickly locate recent exports • Keep your PDF organized Download Combine PDF - Merge PDF today and handle every PDF task in one app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Screenshots
Verdict
The clearest difference is price: Combine PDF at Free against InfinitePadPro's $0.99. Combine PDF also leads on iOS requirement (16.0 vs 18.6). InfinitePadPro's advantage is in-app purchases (none vs 2) and ads (none vs shown). On 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
Combine PDF is free to download; InfinitePadPro costs $0.99 up front. Combine PDF sells 2 in-app purchases, starting at $1.99 per 7 days. InfinitePadPro asks for nothing beyond the download.
InfinitePadPro ships an update every 8 days, Combine PDF every 6 weeks. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.
| Parameter | InfinitePadPro | Combine PDF |
|---|---|---|
| Price | $0.99 | Free — better |
| Update frequency | Every 8 days — better | Every 6 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | 波 丁 | Donda Arvindbhai |
In-app purchases
InfinitePadPro
No in-app purchases
Combine PDF
- Weekly Premium7 Days trial$1.997 Days
- Lifetime Premium Access$19.99
Questions
Is InfinitePadPro free?
Is Combine PDF free?
Do InfinitePadPro or Combine PDF have ads?
Which is updated more often, InfinitePadPro or Combine PDF?
Other comparisons
