Comparison

Shadow Security vs ProUser

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

Head to head
About

Shadow Security

Features
Read full description

PROTECT YOUR DOCUMENTS FROM AI ATTACKS Shadow Security is the first PDF security app with AI-powered threat detection. Scan documents for prompt injection, data exfiltration, malware, and 160+ other sophisticated attacks. ENTERPRISE-GRADE SECURITY FOR EVERYONE • 160+ Threat Detection Patterns across 30 categories • AI Attack Protection (prompt injection, jailbreaks) • Malware & Virus Detection • Hidden Text Detection (steganography) • Data Exfiltration Prevention • SQL Injection & XSS Detection • Command Injection Protection • And much more... PROFESSIONAL PDF TOOLS INCLUDED • Full-featured PDF viewer with smooth scrolling • Annotations: highlights, notes, drawings, signatures • Form filling and editing • OCR text extraction • Page management and organization • Export to multiple formats • Print with advanced options 100% PRIVATE & SECURE • All scanning happens on YOUR device • No cloud uploads or data collection • No internet connection required • Your documents never leave your device • AES-256 encryption for sensitive data • GDPR, HIPAA, CCPA compliant CLEAN FILE EXPORT • Remove all detected threats automatically • Scrub metadata and EXIF data • Export sanitized versions of documents • Verify clean files with re-scanning • Batch cleaning for multiple files COMPLIANCE TRACKING • GDPR compliance monitoring • HIPAA compliance features • SOC2 compliance tracking • PCI-DSS compliance support • Audit logging and reporting • Enterprise-ready compliance tools ADVANCED FEATURES • Batch scanning for multiple files • Scheduled automatic scans • Folder watching and monitoring • Detailed threat reports (PDF, JSON, CSV) • Threat severity classification • Real-time security dashboard • AI-powered threat intelligence MULTI-PLATFORM • Native macOS app (Apple Silicon + Intel) • Native iOS app (iPhone + iPad) • iCloud sync across devices • Handoff support • Universal purchase PERFECT FOR • Business professionals handling sensitive documents • Healthcare providers (HIPAA compliance) • Legal professionals • Financial services • Government agencies • Privacy-conscious individuals • Anyone who values document security WHY SHADOW SECURITY? In an era of AI-powered attacks, traditional security tools aren't enough. Shadow Security uses advanced algorithms to detect sophisticated threats that other apps miss: • Prompt injection attacks that manipulate AI systems • Jailbreak techniques that bypass security controls • Hidden malicious code in seemingly innocent documents • Data exfiltration attempts • Social engineering attacks • And 155+ other threat patterns TRUSTED BY PROFESSIONALS Shadow Security is built by security experts and trusted by professionals worldwide. Our threat detection algorithms are constantly updated to protect against the latest attacks. EASY TO USE Despite its advanced capabilities, Shadow Security is incredibly easy to use: 1. Open any PDF, Word doc, or image 2. Tap "Scan for Threats" 3. Review detailed results 4. Export clean version if needed TERMS OF USE https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ProUser

Features
Read full description

ProUser turns a sentence into an event. Type "coffee with sam tomorrow at 9" and it's on your calendar — no menus, no date pickers, no taps. It reads plain language on-device, instantly. Say what and when, and the event lands. Same words, same result, every time — nothing waits on a server, nothing leaves your phone. Made for people who live in their calendar and think faster than they tap. WHAT YOU CAN DO • Add in one line — "dentist tuesday at 3pm", "lunch at noon", "gym friday 7am" • Let it find the time — "block 2 hours of deep work friday" takes your first free gap • Change things in plain words — push it later, move it, make it shorter, rename it • Clear a stretch — "clear friday afternoon" empties it in one step • Undo anything — every change reverses instantly; deletes ask first • Save your usuals — define "gym" once, then just type "gym fri" • Keep a todo list — "todo buy milk" adds it, "todo! call landlord" puts it first, "done buy milk" ticks it off • Your week on the lock screen — a Shortcut draws the week's events and your todos onto your wallpaper • Quick Add widget — open straight into the command bar from your lock screen • Type or speak it PRIVATE BY DESIGN Your calendar stays on your device. ProUser works offline, makes no account, and collects nothing. Edit your calendar like code.

Screenshots

Shadow Security4 screens
ProUser4 screens

Verdict

The call

The clearest difference is in-app purchases: ProUser at none against Shadow Security's 1. ProUser also leads on update cadence (monthly vs every 5 months). Shadow Security's advantage is iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Shadow Security sells 1 in-app purchase, starting at $0.99 per month. ProUser asks for nothing beyond the download.

UpkeepUpdate frequency

Shadow Security ships an update every 5 months, ProUser monthly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard3 real differences Ā· 3 level
Shadow Security versus ProUser: the parameters behind the verdict, then further details
ParameterShadow SecurityProUser
PriceFreeFree
Update frequencyEvery 5 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad — betteriPhone
Requires iOS18.0 — better26.0
Further details — not scored
Size5 MB2 MB
Age rating4+4+
DeveloperStephen Luadzershourafter

In-app purchases

1 purchases

Shadow Security

Subscriptions1
  • Shadow Security Monthly3 Days trial$0.991 Month
None

ProUser

No in-app purchases

Questions

Is Shadow Security free?
Shadow Security is free to download, with in-app purchases available.
Is ProUser free?
ProUser is free to download, with no in-app purchases.
Do Shadow Security or ProUser have ads?
Neither Shadow Security nor ProUser shows ads.
Which is updated more often, Shadow Security or ProUser?
Shadow Security ships an update every 5 months, and ProUser monthly. Most recently, Shadow Security was updated on October 25, 2026 and ProUser on October 28, 2026.

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