Comparison

PDF Scanner Document Converter vs Add Printer

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

Head to head
About

PDF Scanner Document Converter

Transform your iPhone into a powerful document scanner and converter. Easily scan paper documents to PDF, convert them to various formats like Word or JPG, and then sign, annotate, or share them. Keep all your important files organized and secure locally on your device.

Highlights
  • AI-enhanced document scanning
  • Automatic page straightening
  • Multi-language OCR text recognition
  • Digital signature and annotation tools
  • Export to PDF, JPG, DOC, TXT
  • Local document storage and security
  • Batch import and advanced editing (Premium)
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.

About

Add Printer

Easily print photos, PDFs, and documents from your device. Includes a built-in scanner with editing tools and supports a wide range of printer models. Offers various subscription options for unlimited use.

Highlights
  • Print photos, PDFs, and documents
  • Built-in document scanner
  • Scan editing and filters
  • Supports multiple photo printing
  • Access iCloud files
  • Wide printer model compatibility
Features
Read full description

Add Printer App is an all-in-one printer app! It allows you to print your photos, pdf, documents easily. PRINT ANYTHING The app allows you to print various types of documents in a very easy way. SCAN DOCUMENTS The app has a built-in scanner for scanning documents using your iPhone or iPad camera. You also can edit and add filters to scanned documents before printing them. PRINT PHOTOS Choose your favorite moments from your camera roll and print them off. You can print multiple photos at one time. PRINT DOCUMENTS You can access your files from your iPhone. You can also access your iCloud files. The application allows you to print PNG, JPEG and PDF files. We supports most printers models such as HP, Brother, Canon, Dell, Epson, Lanier, Xerox, Aurora, Lexmark, Panasonic, RICOH, Toshiba, and many others. Use this app for your HP printer, use it to scan documents and print them using your Canon printer etc... This app supports most AirPrint printers. SUBSCRIPTION OPTIONS: The app offers unlimited use and unlocks all features for $19.99/year. You can also choose to subscribe for $3.99/month, or $2.99/week, or buy a one-time discount of $29.99. - Payment will be charged to iTunes Account at the confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of renewal. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that content. - No cancellation of the current subscription is allowed during the active subscription period. Privacy Policy: https://sites.google.com/view/privacypolicysmartprinter/home Terms of service: https://sites.google.com/view/termofusesmartprinter/home This app is not affiliated with HP, Canon, Epson, or any other brand named in the description.

Screenshots

PDF Scanner Document Converter4 screens
Add Printer4 screens

Verdict

The call

The clearest difference is ads: Add Printer at none against PDF Scanner Document Converter's shown. Add Printer also leads on iOS requirement (14.0 vs 16.0). PDF Scanner Document Converter's advantage is rating (4.5 vs 4.1) and ratings volume (547 vs 54). On price, update cadence, in-app purchases and monetization model 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 and Add Printer sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PDF Scanner Document Converter holds the better App Store score, 4.5 against 4.1. That said, the two scores are not equally well evidenced: PDF Scanner Document Converter has 547 ratings behind it against 54, so its average is the more settled of the two.

UpkeepUpdate frequency

PDF Scanner Document Converter ships an update every 2 weeks, Add Printer every 3 weeks. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
PDF Scanner Document Converter versus Add Printer: the parameters behind the verdict, then further details
ParameterPDF Scanner Document ConverterAdd Printer
PriceFreeFree
Rating4.5 (547 ratings) — better4.1 (54 ratings)
Positive reviews31.9% of reviews—
Number of ratings547 — better54
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS16.014.0 — better
Further details — not scored
Size151 MB15 MB
Age rating4+4+
Developer兰 陈常宣 刘

Customer experience

PDF Scanner Document Converter

All ratings547 ratings
Positive87.9%
Neutral3.1%
Negative9.0%
Written reviews47 reviews
Positive31.9%
Neutral0.0%
Negative68.1%

Add Printer

All ratings53 ratings
Positive73.6%
Neutral7.5%
Negative18.9%

Bugs and 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

Add Printer

Not enough reviews yet to summarise bugs or requests.

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
4 purchases

Add Printer

Subscriptions3
  • Weekly Subscription$1.997 Days
  • Monthly Subscription$3.991 Month
  • Yearly Subscription$19.991 Year
One-time1
  • Lifetime Subscription$29.99

Questions

Is PDF Scanner Document Converter free?
PDF Scanner Document Converter is free to download, with in-app purchases available.
Is Add Printer free?
Add Printer is free to download, with in-app purchases available.
Which has better reviews, PDF Scanner Document Converter or Add Printer?
PDF Scanner Document Converter is rated higher. PDF Scanner Document Converter averages 4.5 out of 5 from 547 ratings, while Add Printer averages 4.1 from 54 ratings.
Do PDF Scanner Document Converter or Add Printer have ads?
PDF Scanner Document Converter shows ads; Add Printer does not.
Which is updated more often, PDF Scanner Document Converter or Add Printer?
PDF Scanner Document Converter ships an update every 2 weeks, and Add Printer every 3 weeks. Most recently, PDF Scanner Document Converter was updated on November 3, 2026 and Add Printer on November 3, 2026.

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