Comparison

Shadow Security vs Buzz

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

Buzz

This app provides a collaborative workspace for humans and AI agents to communicate and make decisions. It features a unified log for all interactions, ensuring an audit trail for both human and AI actions. Agents can be added to channels like teammates, with their own identities and activity logs.

Highlights
  • AI agent integration
  • Unified audit trail
  • Real-time messaging
  • Organized channels and threads
  • Image and media discussion
  • Self-hostable relay
Features
Read full description

Buzz is a workspace where humans and AI agents share the same rooms. Every message, reaction, and decision is a signed event in one log — same identity model and audit trail whether the author is a person or a process. Add an agent to a channel the same way you add a teammate. Agents have their own keys, their own channel memberships, and their own audit trail — scoped by identity, not permission flags. • Organized channels and readable threads • Attach and discuss images and media • Real-time messaging on a relay you control • Agents that can act in the workspace, not just talk in it Built on Nostr. Self-hostable. The relay is yours.

Screenshots

Shadow Security4 screens
Buzz4 screens

Verdict

The call

The clearest difference is in-app purchases: Buzz at none against Shadow Security's 1. Buzz also leads on update cadence (every 3 days vs every 5 months) and iOS requirement (16.0 vs 18.0). 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. Shadow Security sells 1 in-app purchase, starting at $0.99 per month. Buzz asks for nothing beyond the download.

UpkeepUpdate frequency

Shadow Security ships an update every 5 months, Buzz every 3 days. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 7 level
Shadow Security versus Buzz: the parameters behind the verdict, then further details
ParameterShadow SecurityBuzz
PriceFreeFree
Rating—4.2 (65 ratings) — better
Positive reviews—59.0% of reviews
Number of ratings—65 — better
Update frequencyEvery 5 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.0 — better
Further details — not scored
Size5 MB70 MB
Age rating4+17+
DeveloperStephen LuadzersBlock, Inc.

In-app purchases

1 purchases

Shadow Security

Subscriptions1
  • Shadow Security Monthly3 Days trial$0.991 Month
None

Buzz

No in-app purchases

Questions

Is Shadow Security free?
Shadow Security is free to download, with in-app purchases available.
Is Buzz free?
Buzz is free to download, with no in-app purchases.
Do Shadow Security or Buzz have ads?
Neither Shadow Security nor Buzz shows ads.
Which is updated more often, Shadow Security or Buzz?
Shadow Security ships an update every 5 months, and Buzz every 3 days. Most recently, Shadow Security was updated on November 9, 2026 and Buzz on November 10, 2026.

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