Comparison

Doc Align vs PDF Scanner

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

Head to head
About

Doc Align

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Key Features - Scan documents, notes, OA boards, blackboards, and photos - Import photos saved on your iPhone - Automatically detect document edges - Auto-correct distortion and straighten images - Extract text from images (OCR) - Share as JPEG or PDF - Share extracted text only What is Doc Align? Doc Align automatically corrects distortions and converts captured or imported images into clean, straight PDFs or JPEGs. It works like a scanner, and with OCR, you can extract text for work, study, or organization. Sharing is simple — send PDFs or images instantly. You can also import photos saved on your iPhone, making it easy to use anytime. Everything is done within the app for smart document management at your fingertips. Useful for - Preparing neat documents for submission - Saving whiteboard notes or board writings - Organizing business cards or receipts into PDFs - Extracting text from images for reuse

About

PDF Scanner

Transform your mobile device into a powerful document scanner. Easily capture, edit, and organize PDFs with features like OCR, digital signatures, and form filling. Streamline your workflow and go paperless.

Highlights
  • Automatic edge detection and perspective correction
  • On-device OCR for searchable PDFs
  • Digital signature creation and placement
  • Interactive PDF form filling
  • Page organization and merging
  • Cloud storage integration
Features
Read full description

Scan it. Finish it. Find it. Turn receipts, forms, notes, and everyday paperwork into PDFs on your iPhone or iPad. Start with the camera, choose photos, or import a PDF. No app account to create. FROM PAPER OR PHOTO TO PDF - Scan with automatic page-edge detection and perspective correction - Review imported photos, adjust their corners, rotate, and reorder before saving - Keep every scanned page, including pages beyond the free viewing limit - Share PDFs through the apps and services available on your device A LIBRARY YOU CAN COME BACK TO Switch between a visual grid and a compact list. Find documents by name, sort your library, and keep work together in folders. Recently Deleted lets you recover documents for 30 days. Documents use your own iCloud Drive when available, with local storage as a fallback. FINISH YOUR PAPERWORK WITH PRO - Read and export documents of any length, without the free 3-page limit - Export and share without the PDF Scanner watermark - Create searchable PDFs with on-device OCR and find words inside documents - Draw or scan a signature, save it, and place it on a page - Fill supported interactive PDF forms, add text, and mark up with your finger or Apple Pencil - Permanently redact sensitive information - Merge, split, extract, flatten, and password-protect PDFs - Improve pages with all enhance filters and fine adjustments, including Sharp Text for faint print - Revert enhanced pages to a saved picture of how they looked before enhancement, where available - Protect app access with Face ID or your device passcode - Remove ads FREE TO START Scan, import, and organize for free. All captured pages are saved; free viewing shows the first 3 pages of each document. PDFs longer than 3 pages require Pro to share or export. Free exports include a PDF Scanner watermark. When an ad is available, an optional rewarded ad can remove the watermark from one eligible export. The free version is ad-supported. CHOOSE PRO WHEN YOU NEED IT Monthly and annual subscriptions, or a one-time Lifetime purchase. See current localized prices and any eligible trial in the app before confirming. No trial is promised to customers who are not eligible. YOUR DOCUMENTS, YOUR STORAGE Scanning and text recognition run on your device. Documents stay on your device or in your own iCloud Drive, rather than our servers. Keep originals is on by default and saves a picture before enhancement, using your storage; you can manage these copies in Settings. Pro can restore that picture, but it does not restore searchable text, interactive form fields, or later edits. Questions or feedback: mwsupplylimited@gmail.com Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple ID. Manage or cancel subscriptions in App Store account settings. Lifetime is a one-time purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mwsupplylimited.github.io/pdfscanner/privacy.html

Screenshots

Doc Align4 screens
PDF Scanner4 screens

Verdict

The call

The clearest difference is update cadence: PDF Scanner at every 4 days against Doc Align's monthly. Doc Align's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases 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. Doc Align sells 1 one-off in-app purchase and PDF Scanner sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Doc Align ships an update monthly, PDF Scanner every 4 days. The most recent releases landed on November 5, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 7 level
Doc Align versus PDF Scanner: the parameters behind the verdict, then further details
ParameterDoc AlignPDF Scanner
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyMonthlyEvery 4 days — better
AdsYesYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size18 MB29 MB
Age rating4+4+
DeveloperKazuhisa KobayashiMatthew Wong

In-app purchases

1 purchases

Doc Align

One-time1
  • Remove Ads$4.99
3 purchases

PDF Scanner

Subscriptions2
  • Pro Monthly$3.991 Month
  • Pro Annual7 Days trial$19.991 Year
One-time1
  • Pro Lifetime$59.99

Questions

Is Doc Align free?
Doc Align is free to download, with in-app purchases available.
Is PDF Scanner free?
PDF Scanner is free to download, with in-app purchases available.
Do Doc Align or PDF Scanner have ads?
Both Doc Align and PDF Scanner show ads.
Which is updated more often, Doc Align or PDF Scanner?
Doc Align ships an update monthly, and PDF Scanner every 4 days. Most recently, Doc Align was updated on November 5, 2026 and PDF Scanner on November 3, 2026.

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