# Locked In: Prep for CISSP — CISSP exam study companion > CISSP exam study companion with bite-sized lessons and practice questions. (iPhone/iPad app by OMAR DANIEL GRAZIANO.) - Source: https://appshunter.io/ios/app/locked-in-prep-for-cissp/id6771480620 (this page in markdown: same URL + `.md`) - Developer: [OMAR DANIEL GRAZIANO](https://appshunter.io/developer/1896485759) - Category: Education, Reference - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 9+ - Requires: iOS 17.0 · 5 MB - Languages: American English - Released: 2026-05-27 - Data updated: 2026-09-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/locked-in-prep-for-cissp/id6771480620/reviews.md ## What is Locked In? Locked-In is a bite-sized study companion for the (ISC)2 Certified Information Systems Security Professional (CISSP) exam. Built for working security pros who study in 10-minute windows — on the train, on lunch, or between meetings. Every lesson is short, focused, and ends with a quick-check so you know what stuck. WHAT'S INSIDE - All 8 CISSP exam domains, broken into bite-sized lessons - Visual diagrams for key concepts — security models, OSI layers, cryptography, IAM, network architecture, the risk lifecycle, and more - Inline quick-checks at the end of each lesson - A practice bank of 320 multiple-choice questions, organized by domain and difficulty - Scenario-style questions with detailed answer explanations - A full 50-question, 75-minute timed mock exam with flag-for-review and a final review screen - Flashcard deck of must-know terms with SM-2 spaced repetition - Searchable glossary covering every acronym you'll see on test day - Progress tracking, streaks, bookmarks, and personal notes - Weak-spot review that surfaces the topics you keep missing WHO IT'S FOR - Security analysts and engineers preparing for the CISSP alongside a day job - IT pros moving into security management and governance roles - Career changers building toward a senior security credential WHY LOCKED-IN - Works fully offline — no account, no tracking, no ads - One-time unlock, no subscription - Content aligned with the current CISSP exam outline FREE TIER AND FULL UNLOCK Domain 1's first topic is fully free, plus a preview lesson from every other domain. The one-time $14.99 unlock opens everything — all 8 domains, the full 320-question practice bank, every flashcard, and the timed mock exam. Not affiliated with, endorsed by, or sponsored by (ISC)2. CISSP and (ISC)2 are registered marks of International Information System Security Certification Consortium, Inc. Locked-In is an independent study aid. ## Key features - Bite-sized lessons for all 8 CISSP domains - Visual diagrams for key concepts - 320 multiple-choice practice questions - Timed mock exam - Flashcards with spaced repetition - Searchable glossary - Progress tracking and weak-spot review ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Locked-In CISSP Full Unlock | $14.99 | one-time | ## Frequently asked questions about Locked In ### What is Locked In? Locked In is a study companion designed to help you prepare for the CISSP exam. It offers bite-sized lessons, practice questions, flashcards, and mock exams to reinforce your learning. ### How does Locked In help with CISSP preparation? Locked In breaks down all 8 CISSP exam domains into manageable lessons, includes visual aids, and provides a practice bank of 320 questions with detailed explanations. It also features a timed mock exam to simulate test conditions. ### Does Locked In work offline? Yes, Locked In works fully offline, meaning you can study without an internet connection. This makes it convenient for studying on the go. ### What is the pricing for Locked In? Locked In offers a free tier with the first topic of Domain 1 and a preview lesson from other domains. A one-time unlock of $14.99 provides access to all content, including the full practice bank and mock exam. ### How often is Locked In updated? The app was last updated on August 3, 2026, indicating ongoing support and content alignment. The current version is 2.0. ### What devices does Locked In support? Locked In is available for iPhone and iPad devices, making it accessible to a wide range of iOS users. ### What is the age rating for Locked In? Locked In has an age rating of 9+, indicating it is suitable for users aged 9 and above. ### Does Locked In have ads? No, Locked In is ad-free. The developer explicitly states that the app contains no advertisements. ## Version history (last 5 releases) ### 2.2 — 2026-08-27 Practice questions have been rewritten so the correct answer can no longer be identified from its shape. Options within a question now share the same form, length and structure, so the right answer has to be recognised rather than guessed. Question wording and explanations were reviewed alongside it. ### 2.1 — 2026-08-15 Squashed bugs. Enjoy! ### 2.0 — 2026-08-03 Version 2.0 is a major refinement of Locked-In: • Improved layouts across iPhone and iPad • Clearer navigation and study-progress feedback • Refined lessons, quizzes, flashcards, and practice flows • Accessibility and readability improvements • Reliability and performance fixes throughout ### 1.0.1 — 2026-06-01 Bug fixes and performance improvements. ### 1.0 — 2026-05-28 No release notes. ## Apps similar to Locked In | App | Rating | Price | Category | | --- | --- | --- | --- | | [My Moon Essence](https://appshunter.io/ios/app/my-moon-essence/id6469059415) | — | Free | Education | | [Educational Networks](https://appshunter.io/ios/app/educational-networks/id1128350658) | 2.9 (107) | Free | Education | | [Ten Surah - Quran Audio App](https://appshunter.io/ios/app/ten-surah-quran-audio-app/id1434178492) | 4.8 (71) | Free | Education | | [Marathi 101 - Learn to Write](https://appshunter.io/ios/app/marathi-101-learn-to-write/id1441894110) | 4.6 (128) | Free | Education | | [Abacus Practice](https://appshunter.io/ios/app/abacus-practice/id6744260586) | — | Free | Education | | [Calculator & abacus training](https://appshunter.io/ios/app/calculator-and-abacus-training/id1092519812) | 1.0 (1) | Free | Education | ## More apps by OMAR DANIEL GRAZIANO - [Cycle Cipher](https://appshunter.io/ios/app/cycle-cipher/id6767546105) - [CivBites](https://appshunter.io/ios/app/civbites/id6767999584) - [Decanon](https://appshunter.io/ios/app/decanon/id6768711973) - [Tanksmith](https://appshunter.io/ios/app/tanksmith/id6769517856) - [Roomprint](https://appshunter.io/ios/app/roomprint/id6769752243) - [Liminal: Learn Philosophy](https://appshunter.io/ios/app/liminal-learn-philosophy/id6770075835) All apps by OMAR DANIEL GRAZIANO: https://appshunter.io/developer/1896485759 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*