Shadow Security vs YouNotes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Shadow Security
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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/
YouNotes
This digital note-taking app helps you organize thoughts for learning, work, and creativity. Create personalized notebooks, draw on a freeform canvas, and brainstorm with mind maps. It offers a smooth and reliable experience for all your note-taking needs.
- Personalized notebooks with custom covers
- Freeform canvas for writing and drawing
- Whiteboard mode with zooming
- Mind map creation for idea organization
- Insert images, text, and shapes
- Flexible editing tools
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YouNotes is a digital note-taking app designed for learning, work, and creative thinking. Everything you need is in one place—notes, PDF annotation, an infinite whiteboard, mind maps, text documents, and more. In addition to Apple's built-in drawing tools, YouNotes provides a complete set of creative tools including Lasso Selection, Text, Mind Map, Shapes, and a Laser Pointer, making handwriting, annotation, organization, and layout feel more natural and intuitive. With YouNotes, you can enjoy: • Infinite Canvas Combine mind maps, handwritten notes, images, stickers, and shapes on an unlimited canvas where your ideas can grow without boundaries. • Mind Maps Create expressive mind maps by freely mixing text, images, and handwriting, making your ideas more visual, flexible, and engaging. • Seamless Sync Across Devices Works on iPhone, iPad, and Mac with iCloud Sync, so your notes are always available wherever you are. • Multiple Interaction Modes Choose between Apple Pencil Mode, Finger Drawing Mode, and Reading Mode to match the way you like to work. • Teaching & Presentations Use the built-in Laser Pointer to highlight important content during classes, meetings, or presentations. • Dark Mode Enjoy a comfortable viewing experience at night while reducing eye strain and helping extend battery life. From a simple idea, to a single page of notes, to an entire knowledge system, YouNotes is designed to be your quiet, reliable creative companion—helping every thought become clearer and every note more meaningful. Looking Ahead Traditional note-taking is about recording information, organizing it yourself, and searching for answers on your own. As YouNotes continues to evolve, my vision is to transform it into an AI-powered notebook built for the future. More than just a place to write, YouNotes will integrate powerful AI capabilities that actively support your learning—from capturing ideas to understanding concepts, from asking questions to finding answers. Every note will become more valuable as AI helps organize knowledge, explain complex topics, and solve problems—like having a personal tutor by your side whenever you need one. Privacy Policy: https://younote.aiyue.pro/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: YouNotes at every 10 days against Shadow Security's every 5 months. 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
Both are free to download. Shadow Security sells 1 in-app purchase, starting at $0.99 per month and YouNotes sells 2 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.
Shadow Security ships an update every 5 months, YouNotes every 10 days. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.
| Parameter | Shadow Security | YouNotes |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 5 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Stephen Luadzers | Yangjiang AiYue Information Technology Co., LTD |
In-app purchases
Shadow Security
- Shadow Security Monthly3 Days trial$0.991 Month
YouNotes
- Annual Membership$2.991 Year
- Lifetime Membership$5.99









