CISSP Prep Tools Compared: What Your $99 Actually Buys
Boson, Pocket Prep, LearnZapp, and TierOne compared for CISSP prep on price, features, and what you really get. Includes a side-by-side table and the real cost of a multi-cert path.
Boson ExSim-Max for CISSP
Price: $99 per year, for CISSP.
Boson ExSim is known for realistic practice exams. The CISSP product includes 6 practice exams, 900 questions, in a simulation mode that mimics the actual testing environment, with comprehensive explanations and references. If you want to experience the pressure of a timed exam before walking into the Pearson VUE center, Boson is a legitimate option.
ExSim is a practice-exam product, and it does that job well. It is built for exam simulation rather than as a full study platform, so many candidates pair it with another resource.
Boson prices each ExSim-Max product separately: CISSP and Security+ are $99 per year each. If more than one certification is on your roadmap, that is one subscription per exam. Its No Pass, No Pay guarantee is a refund of the price you paid (prorated if bought in a kit) if you meet its terms.
Pocket Prep
Price: $20.99 per month, $49.99 per quarter, or $124.99 per year, covering 27 IT and cybersecurity exams.
One Pocket Prep Premium subscription covers its whole IT and cybersecurity catalog, including CISSP, CCSP, SSCP, CISM, CISA, Security+ and CEH. That breadth is a genuine strength for anyone mixing security certs with networking or cloud exams.
The CISSP bank lists 1,000 questions with explanations, and 55 free questions to try. Study modes include Quick 10, Timed, Missed Questions, Weakest Subject, Level Up and Build Your Own quizzes, plus a Question of the Day, along with a Mock Exam quiz mode and performance by subject, on mobile and web. It is a solid practice-question source.
LearnZapp
Price: $16.99 per month or $139.99 per year for the ISC2 app, which covers CISSP, CCSP and SSCP.
LearnZapp's site lists its ISC2 app as the ISC2 Official App, describes its content as backed by ISC2 and Wiley partnerships, and sources the ISC2 app's study content from Wiley's Sybex study guides. That is a genuine credibility advantage, and it is the main reason candidates weigh LearnZapp for CISSP.
The ISC2 app lists 5,050 questions, 1,800 flashcards and 23 practice tests across CISSP, CCSP and SSCP, plus 2,600 study articles, along with a Readiness Score, Custom Test Builder, and Community Insights. It is a strong, polished product for ISC2 certifications.
For LearnZapp's per-app pricing, guarantee terms and features side by side with TierOne, each sourced from LearnZapp's own pages, see our LearnZapp alternative comparison.
One thing to weigh: LearnZapp sells separate apps by certification body. CISA and CISM are covered by its ISACA app at $89.99 per year, and Security+ by its CompTIA app at $99.99 per year, each a separate subscription from the ISC2 app.
TierOne Defense Academy
Price: $14.99 per month, $99 per year ($8.25 per month), or $299 lifetime.
TierOne covers nine certifications on one subscription: CISSP, Security+, SSCP, CISA, CISM, CCSP, CEH, Google Cybersecurity, and AWS Security. For a CISSP candidate, that $99 annual plan covers the exam you are studying now and the security certs you are likely to pursue later, across ISC2, ISACA, EC-Council, CompTIA, Google and AWS.
The CISSP content is built against the current ISC2 exam objectives. Every question and flashcard cites a public source: NIST publications, the ISC2 exam outline, IETF standards, or vendor documentation.
Four things set it apart:
SM-2 spaced repetition. The same algorithm that powers Anki. Cards you struggle with come back sooner; cards you have mastered are spaced further apart. For a 6-12 month CISSP study plan, scheduling reviews at the right intervals is exactly where cramming fails and retention wins.
AI tutor on every question. If you are unsure why an answer is correct, ask the AI tutor to explain it, give a simpler analogy, or show a real-world example. It never leaks answers to other questions.
No ads. Subscriptions are the only revenue model, and your study data is not sold.
A pass guarantee with a refund option. Study with Pro for 30 days or more, and if you fail the real exam, send your score report: TierOne extends your subscription three months free or refunds you. Your choice. No question-completion percentage or readiness-score threshold to meet first.
The side-by-side, at a glance
| Boson | Pocket Prep | LearnZapp | TierOne | |
|---|---|---|---|---|
| Monthly | Not published | $20.99 | $16.99 (ISC2 app) | $14.99 |
| Annual | $99 per product | $124.99 | $139.99 (ISC2 app) | $99 |
| Certs covered | 1 per product | 27 IT and cybersecurity exams | 3 in the ISC2 app; ISACA and CompTIA apps sold separately | 9 cybersecurity certs |
| CISSP practice exams | 6 practice exams, 900 questions | Mock Exam quiz mode | 23 practice tests (ISC2 app) | Unlimited timed mock exams (Pro) |
| Flashcards | Not published | Not published | 1,800 (ISC2 app) | Yes |
| Spaced repetition | Not published | Not published | Not published | SM-2 |
| AI tutor | Not published | Not published | Not published | Yes |
| Pass guarantee | Refund of the price you paid (prorated if bought in a kit) | 3 more months of Premium (no refund) | Keep studying free for up to 6 months (no refund) | 3 free months or a full refund, your choice |
Competitor prices and features from each vendor's own pages, checked September 15, 2026. “Not published” means we did not find it on the vendor's pages, not that the product lacks it. TierOne prices from the live /pricing page.
What the numbers actually mean
A CISSP candidate who stops at one cert pays $99 per year for Boson's practice exams, $139.99 per year for LearnZapp's ISC2 app, or $124.99 per year for Pocket Prep's IT and cybersecurity bundle. TierOne's $99 annual plan covers CISSP plus eight other certifications.
On a CISSP-plus-CISM path, LearnZapp is two apps, $229.98 per year. Pocket Prep's single $124.99 subscription covers both, and so does TierOne's $99, or $299 lifetime.
So on a multi-cert path, price alone does not separate Pocket Prep and TierOne. What does: TierOne is built only for cybersecurity certifications, cites a public source on every question, schedules review with spaced repetition, includes an AI tutor, and offers a refund option on its pass guarantee. If you learn best under exam pressure, Boson's simulations are a solid supplement to any of them.
CISSP is not a vocabulary test. It asks you to evaluate a scenario, identify the security problem, and pick the response that fits best from options that are all defensible but differ in fit. Tools that drill recall underperform when the exam asks for judgment. Tools that build applied understanding, and schedule review so you retain it, are the ones that get you to 100-plus-questions-ready on exam day.
Start studying CISSP free: 25 free questions spread across every exam domain, each with a cited source, the Question of the Day, and 5 AI tutor explanations per day. No credit card.
Not affiliated with or endorsed by ISC2, Boson, Pocket Prep, or LearnZapp. TierOne is an independent provider and is not an ISC2 official partner. Sources: boson.com/product/exsim-max-for-cissp, boson.com/guarantee, pocketprep.com/exams/isc2-cissp, help.pocketprep.com/en/articles/3697209-what-is-the-pass-guarantee, learnzapp.com/apps/isc2, learnzapp.com/apps/isaca, learnzapp.com/pass-guarantee.