Comparison

Smart PDF Editor vs PDF Scanner Document Converter

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

Head to head
About

Smart PDF Editor

This app is a PDF editor designed for efficient ink annotations, especially with a stylus. It helps professionals sign and share documents, and students take notes on study materials. Organize your files with a built-in manager.

Highlights
  • Ink annotation optimized
  • Digital signature tool
  • Document review and sharing
  • Note-taking on documents
  • Built-in file manager
  • Color-coded categories
Features
Read full description

Smart PDF is a PDF editor specially optimized for ink annotations. Use it with an Apple Pencil for the ultimate ease in note taking. Great for professionals Quickly sign and send documents. Review, annotate and share files with your colleagues. Great for students If you spend a lot of time reading and studying documents on your iPad, then Smart PDF is an indispensable tool for getting the most out of your study time. Take notes on documents in class, or while studying at home. Keep all your files organized with the built-in file manager, with color-coded categories. We hope you enjoy Smart PDF! -- The App Makers @ Qrayon

About

PDF Scanner Document Converter

Transform your phone into a portable scanner to digitize any document. Easily capture receipts, notes, or reports, save them as PDFs, and organize them with custom titles. Share your scanned files via email or save them for later printing.

Highlights
  • Scan any document
  • Save as PDF
  • Organize with titles
  • Automatic scanning
  • High-quality output
  • Share via email
  • Save to gallery
Features
Read full description

Scan Master turns your iPhone into a document scanner, PDF converter, and OCR text reader. Scan paper to PDF in seconds, convert it to Word, JPG, or TXT, then sign, annotate, and share. Contracts, invoices, receipts, tax returns, medical records, notes, textbook pages. Everything stays sharp and organized. Get perfect scans - AI Enhanced clears shadows, glare, and desk lamp reflections, so a page shot in a normal room still comes out clean - Straighten fixes the angle for you, no lining the page up perfectly or holding the phone flat - Switch between color, grayscale, and high-contrast black and white depending on what you are scanning - Set the look once and apply it to the whole document instead of page by page Multi-language text recognition - Pull the text out of a scan so you can search, copy, and reuse it instead of retyping the page - Detects the language for you, or pick one yourself - Fix a typo or reformat the result before you send it, right inside the app - Copy it as plain text, or export as PDF, DOC, or TXT Sign and mark up without printing - Sign a contract and send it back in a minute, no printer, no scanner, no trip to the office - Draw your signature once and reuse it on everything after that - Highlight the clause that matters, or leave a note for whoever reads it next - Add a stamp or your own watermark before the file leaves your phone Export in the format you need - PDF to file it, JPG to share it, DOC or TXT when you still need to edit it - Send only the pages that matter instead of the whole document - Adjust size and quality so the file is small enough to email - Straight out to email, AirDrop, print, or Files Your documents stay on your device Tax returns, contracts, medical records, and ID documents are not the kind of files that belong on someone else's server. Scan Master scans, processes, and stores everything locally on your iPhone. - Your documents are never uploaded, and no account is required - Text recognition runs on your iPhone, not in the cloud - Lock individual documents behind a password - Add encryption to any file before you export it Scan Master Premium Scan Master is free to use. Premium unlocks batch file import, watermark-free export, file encryption, OCR result export, and advanced editing: signatures, markup, comments, stamps, and custom watermarks. Free users can export one page at a time with a Scan Master watermark. Selecting multiple pages requires Premium. Privacy Policy: https://scanmaster.io/scan-master-privacy-policy.html Terms of Use: https://scanmaster.io/scan-master-terms-conditions.html Questions or suggestions? Email us at getsupport@scanmaster.io.

Screenshots

Smart PDF Editor4 screens
PDF Scanner Document Converter4 screens

Verdict

The call

The clearest difference is rating: PDF Scanner Document Converter at 4.5 against Smart PDF Editor's 3.8. PDF Scanner Document Converter also leads on update cadence (every 3 weeks vs every 7 months) and review sentiment (32% vs 21%). Smart PDF Editor's advantage is in-app purchases (none vs 5) and device support (3 vs 1). On price, ads and iOS requirement 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 Scanner Document Converter sells 5 in-app purchases, starting at $9.99 per month. Smart PDF Editor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PDF Scanner Document Converter holds the better App Store score, 4.5 against 3.8. Both are backed by a comparable volume of ratings — 109 and 543 respectively. Written reviews point the same way: 21% of Smart PDF Editor's written reviews are positive against 32% of PDF Scanner Document Converter's.

UpkeepUpdate frequency

Smart PDF Editor ships an update every 7 months, PDF Scanner Document Converter every 3 weeks. The most recent releases landed on October 12, 2026 and October 19, 2026 respectively.

Scorecard7 real differences · 3 level
Smart PDF Editor versus PDF Scanner Document Converter: the parameters behind the verdict, then further details
ParameterSmart PDF EditorPDF Scanner Document Converter
PriceFreeFree
Rating3.8 (109 ratings)4.5 (543 ratings) — better
Positive reviews20.9% of reviews31.9% of reviews — better
Number of ratings109543 — better
Update frequencyEvery 7 monthsEvery 3 weeks — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better16.0
Further details — not scored
Size11 MB149 MB
Age rating4+4+
DeveloperQrayon, LLC兰 陈

Customer experience

Smart PDF Editor

All ratings109 ratings
Positive67.9%
Neutral5.5%
Negative26.6%
Written reviews43 reviews
Positive20.9%
Neutral0.0%
Negative79.1%

PDF Scanner Document Converter

All ratings543 ratings
Positive88.0%
Neutral3.1%
Negative8.8%
Written reviews47 reviews
Positive31.9%
Neutral0.0%
Negative68.1%

Bugs and requests

Smart PDF Editor

Not enough reviews yet to summarise bugs or requests.

PDF Scanner Document Converter

Reported bugs

6 issues
  • App crashes on launch
  • Scan quality is unreadable
  • App keeps asking to sign up despite active account
  • Files not emailing properly
  • Incompatibility with iPhone 5S
Show 1 more
  • Scanning fails to process documents

Requested features

4 requests
  • Easy in-app cancellation option
  • Color scan option
  • Genuine free trial without credit card requirement
  • Better customer support channels

In-app purchases

None

Smart PDF Editor

No in-app purchases

5 purchases

PDF Scanner Document Converter

Subscriptions5
  • Monthly Plan7 Days trial$9.991 Month
  • PDF Scanner Converter$9.997 Days
  • Weekly Plan3 Days trial$9.997 Days
Show 2 more
  • PDF Document Scanner3 Days trial$59.991 Year
  • Document Scanner App$69.991 Year

Questions

Is Smart PDF Editor free?
Smart PDF Editor is free to download, with no in-app purchases.
Is PDF Scanner Document Converter free?
PDF Scanner Document Converter is free to download, with in-app purchases available.
Which has better reviews, Smart PDF Editor or PDF Scanner Document Converter?
PDF Scanner Document Converter is rated higher. Smart PDF Editor averages 3.8 out of 5 from 109 ratings, while PDF Scanner Document Converter averages 4.5 from 543 ratings.
Do Smart PDF Editor or PDF Scanner Document Converter have ads?
Both Smart PDF Editor and PDF Scanner Document Converter show ads.
Which is updated more often, Smart PDF Editor or PDF Scanner Document Converter?
Smart PDF Editor ships an update every 7 months, and PDF Scanner Document Converter every 3 weeks. Most recently, Smart PDF Editor was updated on October 12, 2026 and PDF Scanner Document Converter on October 19, 2026.

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