Comparison

SendScan vs 4DI

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

Head to head
About

SendScan

Streamline document scanning with automated workflows. Scan, rename, email, and save documents with a single tap. Features OCR for searchable PDFs and text extraction, all with a focus on user privacy and local storage.

Highlights
  • Automated scanning workflows
  • OCR for searchable PDFs
  • Text extraction to .txt files
  • Email and Message sharing automation
  • Intelligent file renaming
  • Home Screen and Lock Screen widgets
  • Private iCloud sync
Features
Read full description

Stop doing the same thing after every scan. SendScan combines a powerful multi-page document scanner with OCR and automation workflows: scan, rename, email, save... one tap, fully automatic! Private iCloud sync. No accounts. No analytics. Optimized for iOS & iPadOS 27. SCAN ONCE, AUTOMATE EVERYTHING Stop wasting time on repetitive tasks after scanning. Create custom workflows that automatically: • Save to specific folders: Route documents to the right place instantly • Email directly: Send scans to clients, colleagues, or yourself with pre-filled subjects and messages *; multiple recipients are supported and you can either type in their address or pick from your device's Contacts • Share via Messages: Like for email, add recipients and share via Messages automatically * • Share seamlessly: Use the system share sheet to send documents anywhere • Rename intelligently: Apply naming patterns with timestamps, dates, and custom tokens • Chain actions: Combine multiple steps into a single tap • Optionally delete after the workflow completes * A confirmation tap before sending is required by iOS. OCR & SEARCHABLE PDFs Make your scans searchable and extract text automatically, privately on-device: • Searchable PDFs: Enable automatic OCR to create PDFs with invisible, selectable text layers with per-word accurate position in search • Text extraction: Every OCR'd scan includes a companion .txt file for easy text access • TXT viewer: View and search recognized text with highlighting and font controls • Share plain text: Quickly share extracted text without the PDF • Manual OCR: Add text recognition to existing PDFs with one tap • Workflow integration: Automatically attach .txt files when emailing or sharing • Quality control: Save as PDF (multi-page) or JPG (one per page) with adjustable quality and compression WIDGETS, SHORTCUTS & QUICK ACTIONS Scan and run workflows without opening the app: • Home Screen widgets: One-tap access to your most-used workflows • Recent documents widget: See thumbnails of your latest scans • Lock Screen widgets: Scan from your Lock Screen • Control Center: Add scanning to your quick actions • App icon Quick Actions: Long-press the app icon to scan or run pinned workflows • Pin workflows: Add your favorite workflow to the center toolbar button for instant access • Shortcuts integration: Build advanced automations with Apple Shortcuts SMART FILE MANAGEMENT • Grid or list views: Choose your preferred browsing style • Rename and organize: Flexible file management with naming templates • Multi-select: Batch operations for efficiency PRIVACY YOU CAN TRUST Your documents belong to you, period. • Zero analytics or tracking: No telemetry, no third-party libraries • Local-first storage: Documents stay on your device • Private iCloud sync: Your data syncs via your personal iCloud Drive with Apple's encryption; the developer cannot access your files • No account required: No sign-ups, no data collection FREE TO START, PRO WITHOUT BREAKING THE BANK Free tier: • Unlimited scanning • Run each default workflow 3 times to try them out SendScan Pro (yearly subscription or lifetime unlock): • Create unlimited custom workflows • Chain multiple actions in a single workflow • Full automation power, without limits • Lifetime unlock includes Family Sharing: Share with up to 5 family members OPTIMIZED FOR iOS & iPadOS 27, compatible with iOS and iPadOS 26. Designed with Apple's Liquid Glass visual language and fine-tuned for iOS & iPadOS 27, for a beautiful, modern experience on iPhone and iPad. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://cdf1982.com/privacy/sendscan_privacy_policy.html

About

4DI

Features
Read full description

4DI is a professional helping tool built for pharmaceutical and life science professionals who work in GxP-regulated environments. Whether you are a quality manager, lab technician, validation specialist, or data integrity officer - 4DI puts essential data integrity knowledge and practical tools right in your pocket. 4DI bridges the gap between regulatory theory and everyday practice on the shop floor. ALCOA++ PRINCIPLES Explore all nine ALCOA++ data integrity principles through interactive, beautifully designed cards. Each principle includes a clear definition, real-world pharmaceutical examples showing both correct practices and common violations, and practical guidance you can apply immediately. Test your knowledge with a built-in quiz featuring 20+ questions. Track your scores over time and watch your expertise grow. REGULATORY FRAMEWORK EXPLORER Navigate the key regulatory frameworks that govern data integrity in pharma: - FDA 21 CFR Part 11 - EU GMP Annex 11 - MHRA GxP Data Integrity Guidance - PIC/S PI 041 - WHO Technical Report Series No. 996, Annex 5 - ICH Q7 Compare frameworks side-by-side to understand where they overlap and differ on critical topics like audit trails, electronic signatures, and risk-based approaches. Color-coded regional tags make orientation effortless. GEMBA WALK DOCUMENTATION Document data integrity observations directly on the production floor. The structured GEMBA Walk tool lets you: - Record observations with location, area, and detailed notes - Attach photos as supporting evidence - Use customizable checklists tailored to your site - Generate professional PDF and Word reports ready for your quality management system - All reports include confidentiality notices and professional formatting COMPREHENSIVE GLOSSARY Access 40+ data integrity terms and abbreviations covering ALCOA++ terminology, regulatory abbreviations (CFR, GMP, GLP, CSV, CSA), technical terms (audit trail, metadata, electronic signature), and quality system terms (CAPA, deviation, OOS, OOT). Each entry includes the full expansion, a clear definition, and context of use. Bookmark your most-used terms and discover something new every day with the Term of the Day feature. DESIGNED FOR PROFESSIONALS - Trilingual: Full support for English, German, and French - Dark and Light mode for comfortable use in any environment - Offline-first: All content available without an internet connection - Privacy-focused: All data stays on your device - No account required, no tracking, no ads 4DI is your daily companion for data integrity excellence in regulated environments. DISCLAIMER: 4DI is a privately developed helping tool. It is not endorsed, certified, or validated by any regulatory authority. Content is for informational purposes only and must not replace official regulatory guidance.

Screenshots

SendScan4 screens
4DI4 screens

Verdict

The call

The clearest difference is in-app purchases: 4DI at none against SendScan's 2. 4DI also leads on update cadence (every 3 days vs every 5 weeks) and iOS requirement (18.6 vs 26.0). On price, ads 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. SendScan sells 2 in-app purchases, starting at $4.99 per year. 4DI asks for nothing beyond the download.

UpkeepUpdate frequency

SendScan ships an update every 5 weeks, 4DI every 3 days. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 6 level
SendScan versus 4DI: the parameters behind the verdict, then further details
ParameterSendScan4DI
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS26.018.6 — better
Further details — not scored
Size8 MB4 MB
Age rating4+4+
DeveloperCesare ForelliRobert Poetzsch

In-app purchases

2 purchases

SendScan

Subscriptions1
  • SendScan Pro 1 year$4.991 Year
One-time1
  • SendScan Pro Lifetime$9.99
None

4DI

No in-app purchases

Questions

Is SendScan free?
SendScan is free to download, with in-app purchases available.
Is 4DI free?
4DI is free to download, with no in-app purchases.
Do SendScan or 4DI have ads?
Neither SendScan nor 4DI shows ads.
Which is updated more often, SendScan or 4DI?
SendScan ships an update every 5 weeks, and 4DI every 3 days. Most recently, SendScan was updated on September 21, 2026 and 4DI on September 22, 2026.

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