SCAN ACE · PDF Scanner App vs One Scan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SCAN ACE · PDF Scanner App
Transform any document or image into a high-quality digital file. This app offers automatic edge detection, multiple scan modes, and advanced editing tools like OCR, filters, and watermarking. Securely manage, share, and convert your files with ease.
- Automatic document edge detection
- Document, ID, and Passport scan modes
- AI OCR for text recognition and copying
- Professional editing filters
- Add signatures and watermarks
- Password protection for PDFs
- Cloud storage integration
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Turn a simple scan into perfect results - SCAN ACE Every file and image is consistently captured with clear, high-quality results. Trusted by millions of users worldwide for over a decade. SCAN ACE PROVIDES ALL THE TOOLS FOR DOCUMENTS: FULL FEATURE SCANNER - Automatically detects document edges with no manual angle adjustment required; - Supports Document, ID Card, Passport scan modes, and image to PDF conversion for different needs; - Provides the option to select page size when exporting documents; - Supports JPG, PDF, and image to PDF file formats for sharing ALL IN ONE PDF DOCUMENT EDITOR - Recognizes text in over 20 languages with AI OCR and supports content copying; - Professional filters including Color, Black & White, Photo, Grayscale; - Draw or scan a signature directly into documents; - Highlight important information with a marker. - Add a watermark to documents for protection or labeling. MANAGE & SHARE PDF - Add a password to PDF documents to keep them secure; - Send documents by fax or email, save to files, or upload to Google Drive, OneDrive, Box, and Dropbox; - Adjust PDF pages to reorder, delete, or rotate them; - Convert files to PDF or search PDF documents by keywords to quickly find what you need SUBSCRIPTION DETAILS - Weekly and annual subscriptions are available. - Payment will be charged to your iTunes account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is disabled at least 24 hours before the end of the current subscription period. - Automatic renewals will be charged at the same price you were originally charged for the subscription. - Subscriptions can be managed by going to Account Settings on the App Store after purchase. SCAN ACE is regularly updated with new features and improvements. If you encounter any issues, please contact us before leaving a review. We are always ready to help and guide you through using the app. If you have a problem or suggestion, please email support@neopixel.biz. You will receive a timely response and solution. Terms of Service: https://neopixel.ai/SCAN-ACE/terms Privacy Policy: https://neopixel.ai/SCAN-ACE/privacy
One Scan
Easily scan, convert, and sign documents from your device. Organize your business and personal files with features like auto-detection, flash, and folder management. Edit, e-sign, and share your scanned documents quickly and efficiently.
- Scan documents with auto-detection
- Convert to PDF instantly
- E-sign and paraph files
- Organize with folders and search
- Share via email and text
- Import files from cloud storage
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One Scan turns your iPhone and iPad into a powerful AI scanner. Point, tap, done: documents, receipts, ID cards, books and photos become crisp, searchable PDFs in one tap. Then sign, edit, organize and share them in seconds. Everything you expect from a top scanner app, without the clutter. No settings to fiddle with, no learning curve: One Scan does the hard work for you. SCAN ANYTHING IN ONE TAP - Automatic edge detection, perspective correction and shadow removal - Batch mode: capture dozens of pages in a row and get a single multi-page PDF - Smart filters: color, grayscale, black & white, whiteboard and auto-enhance - Dedicated modes for documents, ID cards (front and back on one page), passports, business cards, books, receipts and photos - Import from Photos, Files, Mail or any app with the Share Sheet - Built-in QR code and barcode reader AI THAT DOES THE BORING PART - OCR text recognition in 100+ languages: copy, search and export the text of any scan - AI summaries and instant answers: ask a question about a contract, an invoice or a report and get the answer - Smart naming and auto-sorting: One Scan reads your document, names it and files it for you - Data extraction: pull dates, totals and vendors from receipts and invoices, ready to export - One-tap translation of scanned text SIGN AND EDIT PDFS - Sign with your finger, Apple Pencil or a saved signature; add initials, dates and text fields - Fill out forms, annotate, highlight, draw, add stamps and watermarks - Reorder, rotate, delete, merge and split pages - Compress files, choose the page size (A4, Letter…) and the margins - Export as PDF, JPG, PNG, TXT or Word ORGANIZE AND FIND EVERYTHING - Folders, tags and favorites - Full-text search inside your scans, powered by OCR - iCloud sync keeps your library up to date on iPhone and iPad - Save to Files, iCloud Drive, Google Drive, Dropbox or OneDrive - Share by Mail, Messages, AirDrop or WhatsApp, or print with AirPrint PRIVATE BY DESIGN - Your scans are processed on your device and stay in your library. No account required - Lock the app and individual documents with Face ID, Touch ID or a passcode - Password-protect PDFs before you share them - No ads, and we never sell your data MADE FOR IPHONE AND IPAD - Full iPad experience: Split View, drag and drop, keyboard shortcuts and Apple Pencil - Home Screen widgets, Siri Shortcuts and a Files extension to scan from anywhere - Optimized for the latest iOS and iPadOS PERFECT FOR Students, teachers, freelancers, small businesses, travelers and remote workers. Anyone who needs to scan contracts, receipts, notes, whiteboards, IDs or old family photos. Terms of Use: https://mwm.ai/legal/scanner/terms-of-use Privacy Policy: https://mwm.ai/legal/scanner/privacy-policy
Screenshots
Verdict
SCAN ACE · PDF Scanner App and One Scan both sit at 4.8 stars, but that hides the real split: 87% of SCAN ACE · PDF Scanner App's written reviews are positive against 26% of One Scan's. SCAN ACE · PDF Scanner App also leads on update cadence (fortnightly vs every 2 months) and chart position (#187 vs unranked). One Scan's advantage is monetization model (freemium vs subscription). On price, rating, ads and in-app purchases 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
Both are free to download. SCAN ACE · PDF Scanner App sells 10 in-app purchases, starting at $2.99 per month and One Scan sells 10 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for SCAN ACE · PDF Scanner App against 4.7 for One Scan. Both are backed by a comparable volume of ratings — 39K and 12K respectively. Written reviews are what separate them: 87% of SCAN ACE · PDF Scanner App's written reviews are positive against 26% of One Scan's.
SCAN ACE · PDF Scanner App ships an update fortnightly, One Scan every 2 months. Both last shipped on September 24, 2026.
| Parameter | SCAN ACE · PDF Scanner App | One Scan |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (39K ratings) — better | 4.7 (12K ratings) |
| Positive reviews | 86.8% of reviews — better | 26.0% of reviews |
| Number of ratings | 39K — better | 12K |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Best chart rank | #187 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 126 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | NEO PIXEL LABS PTE. LTD. | App Rover |
Customer experience
SCAN ACE · PDF Scanner App
One Scan
User reviews
SCAN ACE · PDF Scanner App
From 39K App Store ratingsWhat we love
- 💻 Easy to use
- 🚀 Convenient for on-the-go scanning
- 📁 Effective for organizing and storing documents
- 🔍 Produces high-quality scans
- ⚙️ Useful features like color/grayscale options
Room to improve
- 🐛 Issues with recent updates (e.g., lost folder organization, decreased functionality)
- 🔍 Quality concerns with some scans
- 🔒 Unreliable cloud storage integration (Dropbox, Google Drive)
- 💰 Frustration with subscription model after previous one-time purchase
- 🤔 Confusing or unintuitive user interface
One Scan
From 12K App Store ratingsWhat we love
- 🚀 Fast and easy to use
- 📸 Excellent image quality
- 💾 Convenient document storage
Room to improve
- 🐛 Crashes and stability issues
- 💰 Expensive subscription model
- 🔒 Difficulty cancelling subscription
Bugs and requests
SCAN ACE · PDF Scanner App
Reported bugs
3 issues- Crashes or freezes during use
- Issues with batch scanning and document processing
- Problems with exporting or sharing scanned documents
Requested features
4 requests- Restore folder organization and management
- Improve cloud storage integration and sync
- Add more customization options for file naming and organization
- Enhance multi-page scanning and editing capabilities
One Scan
Reported bugs
3 issues- App freezes and becomes unresponsive
- Scans not saving properly
- Subscription charges continue even after cancellation
Requested features
3 requests- Free tier with limited scans
- Ability to export scans to cloud storage
- Better customer support and communication
In-app purchases
SCAN ACE · PDF Scanner App
- Premium Plan - Monthly3 Days trial$2.991 Month
- Premium Plan - Weekly3 Days trial$4.997 Days
- Premium Plan - Weekly$4.997 Days
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- Premium Plan - Weekly3 Days trial$5.997 Days
- Premium Plan - Monthly$9.991 Month
- Premium Plan - Weekly7 Days trial$9.997 Days
- Premium Plan - Yearly$19.991 Year
- Premium Plan - Yearly1 Year trial$29.991 Year
- Premium Plan - Yearly$29.991 Year
- Premium Plan - Yearly$49.991 Year
One Scan
- Weekly Premium Pass7 Days trial$3.997 Days
- Weekly Premium Pass7 Days trial$5.997 Days
- Scanner Premium Pass7 Days trial$7.997 Days
Show 7 moreShow fewer
- Monthly Premium Pass7 Days trial$9.991 Month
- Monthly Premium Pass3 Days trial$9.991 Month
- Annual Premium Pass$29.991 Year
- Annually Premium Pass7 Days trial$49.991 Year
- Yearly Premium Pass3 Days trial$49.991 Year
- Yearly Premium Pass.$49.991 Year
- Annually Premium Pass7 Days trial$59.991 Year
Questions
Is SCAN ACE · PDF Scanner App free?
Is One Scan free?
Which has better reviews, SCAN ACE · PDF Scanner App or One Scan?
Do SCAN ACE · PDF Scanner App or One Scan have ads?
Which is updated more often, SCAN ACE · PDF Scanner App or One Scan?
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