Master Unix file permissions with this comprehensive learning tool. Practice exam simulations, spaced repetition, and detailed progress tracking to prepare for Linux certifications or server hardening. Supports iPhone, iPad, and Mac with iCloud sync.
3.2
April 15, 2026
NEW: Exam Simulation (Pro) Simulate Linux+, LPIC-1, and RHCSA exams with cert-specific timing, question counts, and pass/fail scoring. Skip, flag, and return to any question. Domain-by-domain results breakdown after submission. NEW: Certification Exam Prep (Pro) Study by exam domain for CompTIA Linux+, LPIC-1, and RHCSA. Track mastery by objective. Know when you're ready to test. NEW: 3 Question Types Fill in the blank, type full commands, and multi-step task planning. Eight question types total, matching real certification exam formats. NEW: Stats Dashboard (Pro) Interactive charts powered by Swift Charts. Accuracy trends, category performance, question type breakdown, difficulty analysis, and certification domain mastery — all in one place. NEW: iCloud Sync Your mastery progress, XP, streaks, and bookmarks now sync across iPhone, iPad, and Mac. Enable in Settings. NEW: 6 Study Topics chattr/lsattr, stat, find -perm, SELinux, sudoers, and mount options. Every quiz topic is now covered in the study library. IMPROVED: Flashcards Flashcards now surface questions you've already attempted in quizzes, turning them into a focused review tool. Plus: Quiz timer pause on navigation, improved CloudKit reliability, and performance fixes.
More$24.99
Pro Features
Advanced security scanner for Linux file permissions.
Chmod Toolkit covers a comprehensive range of Unix permissions, including chmod, chown, umask, ACLs, and SELinux. It aims to provide mastery of these concepts, not just memorization.
Yes, Chmod Toolkit features three cert-specific exam modes that simulate actual exam methodologies for Linux+ (90 questions, 90 min), LPIC-1 (60 questions, 90 min), and RHCSA (18 hands-on tasks, 3 hours). It allows skipping, flagging, and returning to questions.
It utilizes spaced repetition, scheduling reviews based on accuracy to focus on areas needing the most attention. The app also employs eight different question types to keep users engaged and sharp.
Chmod Toolkit provides a detailed stats dashboard with interactive charts showing accuracy trends, category strengths, question type performance, and certification readiness. It also includes triple progress rings and daily challenge streaks.
Chmod Toolkit is built for every Apple device, including iPhone with haptic feedback, iPad with full-screen layouts and split view, and Mac with native sidebar navigation and keyboard shortcuts. Progress syncs automatically via iCloud.
No, Chmod Toolkit is a one-time purchase with no subscription required. All future updates are included with the initial purchase, ensuring you always have the latest features.
Chmod Toolkit does not require an account to use, and no data leaves your device. Your progress and privacy are protected, as all learning and tracking are done locally.
The app was last updated on April 15, 2026, indicating a commitment to ongoing development and support. Future updates are included with the purchase.
