CISSP Vault: CAT Exam Prep
4,063 Questions · AI Analysis
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Train for CISSP with an adaptive CAT-style exam—not just another fixed mock.
CISSP Vault combines 4,063 practice questions, structured explanations, and an adaptive exam engine in one focused study app. Study in English, Japanese, or Simplified Chinese, and switch any translated question to the original English with one tap.
ADAPTIVE CAT-STYLE SIMULATOR
• 100–150 questions with a three-hour clock
• Difficulty adjusts after every answer
• Forward-only answering and blueprint-weighted coverage across all 8 domains
• Ability trajectory and domain proficiency report after each run
4,063 PRACTICE QUESTIONS
• Broad coverage of all 8 current CISSP domains
• Timed mock exams, domain drills, and focused practice
• Weak-area review, mistakes, bookmarks, and Question of the Day
CHOICE-BY-CHOICE EXPLANATIONS
• Why the correct answer is right
• Why each wrong option is tempting or incorrect
• Key Takeaways: the concept being tested
• Exam Technique: how to identify the intended answer
• Mindset Traps: common judgment errors under exam pressure
TRACK REAL PROGRESS
• Readiness score and domain mastery
• Accuracy trends, exam history, and learning streaks
• Daily reminders and targeted review
• No account required
• Questions and explanations work offline
100 QUESTIONS FREE
Answer your first 100 questions at no cost. Then unlock the complete question bank and all features with one lifetime purchase. No subscription and no recurring fee.
CISSP® is a registered trademark of ISC2, Inc. This app is an independent study aid and is not affiliated with, endorsed by, or sponsored by ISC2.
Ratings & Reviews
- This app’s overall rating was recently reset.
A fresh look for focused CISSP preparation.
• Search questions by keyword or question ID.
• Create and share score cards from adaptive and custom exams.
• See your progress with question maps and clearer domain insights.
• Improved exam pause/resume, progress reset, and purchase recovery.
The developer, 磊 崔, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 磊 崔
- Size
- 36.8 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 2 more
- English, Japanese, Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime Access $49.99
- Copyright
- © 2026 Otis Cui