Comparison

QR Code Studio vs PDF Editor‐Converter & Viewer

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

Head to head
About

QR Code Studio

Features
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Discover the power of instant interaction with QR Code Studio: Scan & Create — a sleek tool for scanning, generating, and managing codes with ease and precision. SCAN ANY QR CODE – Scan QR codes instantly using your device’s camera. – Recognize codes from images in your gallery. – Automatically detect code content — links, text, contacts, Wi-Fi, and more. – Copy, save, or open scanned content directly in your browser. CREATE CUSTOM QR CODES – Generate your own QR codes in seconds. – Choose from multiple data types: text, link, Wi-Fi, contact, email, and others. – Save or export generated codes for future use. MANAGE AND SHARE – Store all scanned and created codes conveniently in one place. – View, edit, or delete saved codes anytime. – Copy content to your clipboard or share it via social apps, messengers, or email. PREMIUM FEATURES Unlock unlimited saved QR codes and extended code creation categories. Effortless scanning, flexible creation, and organized access — QR Code Studio: Scan & Create combines them into one smooth and efficient QR workflow. Privacy Policy: https://docs.google.com/document/d/1pqOKa3sYolEApGaILlThX8FoH0bY4nTDTl91AiTjepU/edit?usp=sharing Term of Use: https://docs.google.com/document/d/1jDOnN-w9N5cKlLi5EnPtB5hhwtrhZNpBbxZuvQwp8rM/edit?usp=sharing

About

PDF Editor‐Converter & Viewer

Transform your phone into a powerful AI-enhanced document scanner. Effortlessly scan, convert images to PDF, extract text with OCR, and digitally sign documents. Organize and share your files instantly, making it ideal for work, school, or daily tasks.

Highlights
  • AI-enhanced document scanning
  • OCR text extraction
  • Digital document signing
  • PDF creation and conversion
  • Automatic edge detection and correction
  • Secure document organization
  • Multiple export options
Features
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Turn your iPhone into a fast, powerful AI-enhanced PDF scanner. Smart Scan: PDF Scanner lets you scan any document using your camera, convert images to PDF, extract text with OCR, sign docs, and organize everything instantly. Perfect for work, school, travel, or everyday tasks. Smart Scan makes document scanning fast, accurate, and effortless. Scan Anything in Seconds Use your camera to scan documents, photos, receipts, ID cards, forms, contracts, notes, and more. Smart Scan automatically detects edges, fixes perspective, and produces clean, high-quality PDFs. AI-Powered OCR (Text Scanner) Convert any photo or image into real text. Extract key information, copy instantly, search your document, or share as needed. OCR turns a simple scan into a fully usable digital document. PDF Converter & Creator Easily turn camera scans or imported images into a PDF. Merge pages, reorder, rotate, and create new documents on the fly. Your phone becomes a complete PDF creator and converter. Document Signing (Sign PDFs Instantly) Add your signature to any doc or PDF using your finger or saved signature. Perfect for contracts, agreements, forms, ID verification, and more. Your device is now a portable doc sign tool. Fast, Clean, Free to Use Smart Scan is designed for speed and simplicity: Fast camera scanning Fast OCR Fast PDF export Free essential tools Clean iOS-style interface No clutter — just a fast, reliable scanner. Organize Your Documents Store your scans securely in one place. Rename, reorder, or share your PDFs, images, receipts, IDs, and signed docs. Everything stays easy to find and ready when you need it. Perfect For Work, School & Everyday Life Smart Scan is ideal for: Students Professionals Freelancers Real estate, legal, medical Anyone who needs a fast PDF scanner with OCR and signing Share Anywhere Export your scanned PDFs or images to: Email, Files, Drive, iCloud, messaging apps, or any PDF reader. PREMIUM Weekly Subscription with Free Trial: Experience all premium features with a free trial period, then continue with a weekly subscription. Monthly Subscription: Unlock all premium features and save with a monthly subscription. Yearly Subscription: Unlock all premium features and save with an annual subscription. INCLUDES: Unlimited scans Handwritten text recognition OCR Ad-free experience Unlimited exports Batch scan multiple documents Digital signatures Export to PDF, JPG, PNG AI-powered edge detection Remove shadows & imperfections Share via email, print Priority customer support SUBSCRIPTION DETAILS Payment charged to iTunes at confirmation Auto-renews unless turned off 24h before renewal Manage subscriptions in Account Settings PRIVACY FIRST No tracking, no data collection GDPR & CCPA compliant SUPPORT Email: support@4onstudios.com Privacy: https://www.4onstudios.com/privacy-policy/ Terms: https://www.4onstudios.com/terms-of-service/

Screenshots

QR Code Studio4 screens
PDF Editor‐Converter & Viewer4 screens

Verdict

The call

QR Code Studio and PDF Editor‐Converter & Viewer are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. QR Code Studio sells 3 in-app purchases, starting at $5.99 per 7 days and PDF Editor‐Converter & Viewer sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

QR Code Studio ships an update every 6 weeks, PDF Editor‐Converter & Viewer every 2 months. The most recent releases landed on September 8, 2026 and August 14, 2026 respectively.

ScorecardNo meaningful differences
QR Code Studio versus PDF Editor‐Converter & Viewer: the parameters behind the verdict, then further details
ParameterQR Code StudioPDF Editor‐Converter & Viewer
PriceFreeFree
Rating—5.0 (15 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—15 — better
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.5 — better
Further details — not scored
Size9 MB111 MB
Age rating4+4+
DeveloperLegacy Restaurants, LPUka Osim

In-app purchases

3 purchases

QR Code Studio

Subscriptions2
  • QR Premium$5.997 Days
  • QR Code Premium3 Days trial$5.997 Days
One-time1
  • QR Code Lifetime$119.99
3 purchases

PDF Editor‐Converter & Viewer

Subscriptions3
  • PDF Editor - Week3 Days trial$6.997 Days
  • PDF Editor - Month$12.991 Month
  • PDF Editor - Year$44.991 Year

Questions

Is QR Code Studio free?
QR Code Studio is free to download, with in-app purchases available.
Is PDF Editor‐Converter & Viewer free?
PDF Editor‐Converter & Viewer is free to download, with in-app purchases available.
Do QR Code Studio or PDF Editor‐Converter & Viewer have ads?
Neither QR Code Studio nor PDF Editor‐Converter & Viewer shows ads.
Which is updated more often, QR Code Studio or PDF Editor‐Converter & Viewer?
QR Code Studio ships an update every 6 weeks, and PDF Editor‐Converter & Viewer every 2 months. Most recently, QR Code Studio was updated on September 8, 2026 and PDF Editor‐Converter & Viewer on August 14, 2026.

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