Certsqill vs Dion Training: Which Prep Is Worth It?

Overview

Jason Dion is one of the most recognized names in IT certification prep, particularly for CompTIA. His Udemy courses for Security+, Network+, A+, CySA+, and PenTest+ routinely rank among the top sellers, driven by clear explanations, regular updates when exams change, and aggressive Udemy sale pricing ($15–$20 per course). He also sells practice exam bundles directly through his website at higher prices.

Dion's strength is teaching — he is genuinely good at explaining difficult concepts in accessible language. His weakness, like all video course creators, is the practice test format: static questions, brief explanations, no adaptive logic, and no real exam analytics. Certsqill is designed specifically for the gap between "I understand the content" and "I am ready to sit the exam."

Comparison Table

Question Quality

Dion's practice questions, particularly his Udemy practice test packs, are well-regarded in the CompTIA community. They are harder than the Dion video course quizzes and do a reasonable job of mimicking the scenario-based format CompTIA uses. His Security+ (SY0-701) practice exams are widely considered among the best available for that specific certification.

Certsqill questions match Dion's at the difficulty and scenario level, with one critical addition: explanations that teach you why each wrong answer is wrong, not just why the right answer is right. This distinction matters enormously when you sit the real exam and encounter a question phrased slightly differently from anything you have practiced — understanding the underlying principle is what saves you.

Explanations

Dion Training keeps explanations minimal in its practice tests. Questions, options, and a static explanation are the full offering. When students encounter a concept they do not understand, they leave the practice environment and search Reddit, YouTube, or Jason's Discord — all of which are valuable communities, but all of which break study momentum.

Certsqill's detailed explanations are available at the moment of confusion — within the question itself. Why port 443 is the answer and not port 22 in a given scenario is spelled out immediately in a contextual, exam-oriented explanation. For certification exams that require nuanced technical distinctions (Security+ in particular), this in-context explanation capability is not a nice-to-have; it is what the learning requires.

Analytics and Progress Tracking

Dion's Udemy practice tests show a final score and flag which questions you missed. That is the extent of it. There is no cross-session tracking, no domain-level weakness analysis, and no readiness prediction. You take the test, see your percentage, and make a gut-feel decision about whether you are ready.

Certsqill's dashboard removes the guesswork. Domain accuracy, confidence trends, time distribution, and a predicted pass/fail score based on your performance trajectory. If you are consistently missing questions in the Threats, Attacks and Vulnerabilities domain of Security+, the platform tells you directly and surfaces more of those questions in your next session.

Pricing

On Udemy sale days (which are almost constant), a Dion course costs $15–$20 and a Dion practice test bundle runs $20–$30. That is excellent value for video content. The standalone practice exam packs on his website (dionttraining.com) are priced higher at $49–$99 per certification. For CompTIA-focused learners who only need one or two certs, the per-item pricing is competitive.

Certsqill is a one-time purchase per certification — $49 for most exams (from $29) — so you buy only the cert you're studying, with no subscription or per-month fees. For learners moving across domains — Security+ now, then CySA+ in six months — you buy each course once and keep it for life with free updates. You can also try 20 questions free per cert first, so you can evaluate the quality before spending anything.

Verdict

These two products are highly complementary. Dion's video courses are among the best available for CompTIA and are worth buying on Udemy sale days. Certsqill handles the practice phase that video courses cannot — adaptive questions, detailed explanations, and exam-day readiness prediction. Most successful CompTIA candidates use both: Dion to learn, Certsqill to prepare.

Frequently Asked Questions