Comparison

KoolPDF vs PDF Converter

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

Head to head
About

KoolPDF

Features
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Transform the way you work with PDFs. KoolPDF is a powerful all-in-one PDF solution that helps you edit, convert, organize, protect, and share documents from anywhere. Whether you're a student, professional, business owner, or everyday user, KoolPDF provides everything you need to handle PDFs efficiently. With 22+ powerful PDF tools, AI-powered automation, OCR text recognition, unlimited file transfer, and clipboard sync, KoolPDF makes document management faster and smarter. PDF TOOLS FOR EVERY NEED Edit and organize your PDF documents with ease. • Merge PDF files • Split PDF documents • Compress PDF size • Remove PDF pages • Extract PDF pages • Repair damaged PDFs • Rotate PDF pages • Add page numbers • Add watermarks • Protect PDF with passwords • Unlock PDF files • Redact sensitive content • Organize and rearrange pages Process documents quickly while maintaining high-quality output. CONVERT FILES TO AND FROM PDF Convert documents and images in seconds. Supported conversions include: • JPG to PDF • PNG to PDF • Word to PDF • Excel to PDF • PowerPoint to PDF • PDF to JPG • PDF to PNG • PDF to Word • PDF to Excel • PDF to PowerPoint Preserve formatting and create professional documents effortlessly. OCR – EXTRACT TEXT FROM IMAGES & SCANNED PDFS Turn scanned documents into editable text. OCR helps you: • Extract text from images • Convert scanned PDFs into editable documents • Create searchable PDFs • Digitize paper documents • Save time on manual typing Perfect for invoices, notes, contracts, receipts, and more. KOOLAI – YOUR AI PDF ASSISTANT Work smarter with AI. KoolAI lets you perform complex PDF actions using simple natural language prompts. Examples: "Merge all PDF files." "Compress this PDF below 5 MB." "Protect this document with a password." "Convert this PDF to Word." "Add page numbers and watermark." Simply describe what you need, and KoolAI handles the rest. KOOLSHARE – UNLIMITED FILE TRANSFER Transfer files between your phone and computer instantly. No cables. No sign-up. No size limits. Features include: • Mobile to desktop transfer • Desktop to mobile transfer • Unlimited file size support • Fast wireless transfers • Secure local sharing • Send photos, videos, PDFs, and documents Move files seamlessly across devices whenever you need them. CLIPBOARD SYNC Copy on one device and paste on another. Clipboard Sync allows you to: • Copy text on mobile and paste on desktop • Transfer links instantly • Move notes between devices • Improve productivity across platforms Stay connected and work without interruptions. FAST, SECURE & EASY TO USE KoolPDF is designed to be simple for everyone while providing professional-grade PDF capabilities. Why users love KoolPDF: • 22+ PDF tools in one app • AI-powered PDF automation • Fast PDF conversions • OCR text recognition • Unlimited file sharing • Clipboard synchronization • Secure document processing • Clean and intuitive interface • High-quality output • Regular feature updates PERFECT FOR • Students • Teachers • Business professionals • Freelancers • Office workers • Remote teams • Content creators • Small businesses Download KoolPDF today and experience a smarter way to edit, convert, compress, organize, protect, share, and automate your PDF workflows.

About

PDF Converter

Features
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Take absolute control of your documents with Local Secure, the premier offline-first PDF manager designed for ultimate security and professional efficiency. While other apps upload your sensitive contracts, taxes, and invoices to public cloud servers, Local Secure processes everything directly on your iPhone. KEY SECURE FEATURES: THE FACE ID SECURE VAULT - Lock sensitive files, scans, and signatures behind Face ID or Touch ID. - Automatically auto-locks whenever you switch tabs or leave the screen. - Complete offline isolation with absolute peace of mind. ELECTRONIC SIGNATURES - Draw and save your signatures in a local signature library. - Apply your signature to any PDF page with a single tap. - Drag, rotate, pinch-to-scale, and change signature ink colors dynamically. MOBILE SCANNER & CONVERSION - Scan physical papers into clean, high-fidelity PDFs. - Organize, crop, and convert documents locally. - Reorder, delete, and extract pages seamlessly. PRO DOCUMENT CANVAS - Add text boxes, custom dates, and visual approved or rejected stamps. - Live Text Edit: Leverage on-device AI to detect and replace text in real-time. - Built-in OCR: Extract raw text from images instantly. No registration required. No ads. Just secure, local document management. Terms of Use (EULA): https://languagekitvocabulary.wordpress.com/terms-of-use-eual/ Terms of Service: https://languagekitvocabulary.wordpress.com/about/ Privacy Policy: https://languagekitvocabulary.wordpress.com/privacy-policy/

Screenshots

KoolPDF4 screens
PDF Converter4 screens

Verdict

The call

The clearest difference is in-app purchases: KoolPDF at none against PDF Converter's 3. KoolPDF also leads on iOS requirement (15.5 vs 17.6). On price, ads 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. PDF Converter sells 3 in-app purchases, starting at $7.99 per 7 days. KoolPDF asks for nothing beyond the download.

Scorecard2 real differences · 3 level
KoolPDF versus PDF Converter: the parameters behind the verdict, then further details
ParameterKoolPDFPDF Converter
PriceFreeFree
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better17.6
Further details — not scored
Size60 MB16 MB
Age rating4++4
DeveloperAgevole Innovation Private LimitedKnyaz Harutyunyan

In-app purchases

None

KoolPDF

No in-app purchases

3 purchases

PDF Converter

Subscriptions2
  • Weekly Plan3 Days trial$7.997 Days
  • Annual Plan$49.991 Year
One-time1
  • Lifetime Pro Access$99.99

Questions

Is KoolPDF free?
KoolPDF is free to download, with no in-app purchases.
Is PDF Converter free?
PDF Converter is free to download, with in-app purchases available.
Do KoolPDF or PDF Converter have ads?
Neither KoolPDF nor PDF Converter shows ads.

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