Chmod Toolkit

Scan & fix file permissions

Free · In‑App Purchases

The professional Unix permissions tool. Calculate chmod values, learn with quizzes, and audit file security — all on iPhone, iPad, and Mac. POWERFUL CALCULATOR • Set permissions with visual pickers, numeric input (755), or symbolic input (rwxr-xr-x) • Real-time conversion between numeric, symbolic, and plain English • Special bits support: setuid, setgid, and sticky bit • File vs. directory context with tailored explanations • Quick presets for common patterns (644, 755, 600, 700, 777) • One-tap copy of the complete chmod command • Compare two permission sets side by side • Save bookmarks for permissions you use often LEARN & PRACTICE • 6 categories of structured lessons covering basics to advanced topics • Interactive quiz system with 5 question types • Earn XP, level up, and track your learning streaks • Spaced repetition prioritizes questions you need to review • Choose your timer speed: Relaxed (30s), Standard (15s), or Speed (8s) • Stats dashboard to identify weak areas REAL-WORLD EXAMPLES • Dozens of permission patterns organized by use case • Standard files, executables, directories, web files, sensitive files, and special cases • Each example includes numeric value, symbolic notation, use case, and security notes PRO: SECURITY SCANNER Unlock professional security scanning tools with a one-time purchase. • Paste terminal output (ls -la) for instant analysis • Scan screenshots with OCR — snap a photo of terminal output • Import text files with permission listings • Mac: Drag-and-drop folder scanning with recursive analysis • 24 security check categories covering 100+ file types • Based on OWASP, CIS Benchmarks, NIST 800-53, and PCI DSS standards • Smart fix commands — copy ready-to-paste chmod fixes • Batch "Fix All" script generation • Export results as CSV for audit reports PRO: QUICK FIX • Paste terminal error messages to diagnose permission issues • Get the exact fix command to resolve the problem PRO: COMPARE PERMISSIONS • Diff two permission sets with a visual comparison • Instantly see what changed between configurations BUILT FOR EVERY PLATFORM • iPhone: Touch-optimized with haptic feedback and sound effects • iPad: Full-screen layouts with split view support • Mac: Native sidebar navigation, keyboard shortcuts, drag-and-drop No account required. No data leaves your device. Your permissions, your privacy.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

Chmod Toolkit 2.0 is a major update packed with new ways to learn, practice, and secure your systems. NEW: Interactive Quiz System • 5 question types: multiple choice, true/false, type-the-octal, symbolic conversion, and scenario-based • Earn XP, level up through ranks, and maintain daily streaks • Spaced repetition focuses on questions you need to review • Choose your speed: Relaxed (30s), Standard (15s), or Speed (8s) timer • Confidence rating system for deeper learning insights NEW: Guided Walkthrough • First-launch onboarding tour introduces every feature • Contextual tips guide you through the calculator step by step NEW: Bookmarks & Compare • Save your most-used permission configurations • Compare two permission sets side by side with visual diffs NEW: Quick Fix Diagnostics • Paste terminal error messages to get instant fix commands IMPROVED: Mac Experience • Larger, more readable text throughout the quiz • Full-page navigation for quiz, diagnostics, and compare tools • Sound effects now work on Mac (Glass, Hero, Basso system sounds) • Refined onboarding tour with centered card layout IMPROVED: Calculator • Special bits (setuid, setgid, sticky) with detailed explanations • Numeric and symbolic input modes Plus: Performance optimizations, accessibility improvements, and dozens of polish fixes.

Version 2.0

The developer, Robert Frederique, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    • Seller
      • Robert Frederique
    • Size
      • 8.4 MB
    • Category
      • Developer Tools
    • Compatibility
      Requires iOS 17.0 or later.
      • iPhone
        Requires iOS 17.0 or later.
      • iPad
        Requires iPadOS 17.0 or later.
      • Mac
        Requires macOS 14.0 or later.
      • Apple Vision
        Requires visionOS 1.0 or later.
    • Languages
      • English
    • Age Rating
      4+
    • In-App Purchases
      Yes
    • Copyright
      • © 2025-2026 Robert Frederique
  • Developer Website
  • Privacy Policy