Certsqill vs Professor Messer: Which is Better for CompTIA Cert Prep in 2026?

Overview

Professor Messer (James Messer) has built one of the most respected CompTIA training resources online. His free video courses for A+, Network+, Security+, and other CompTIA exams are watched by millions of candidates globally and are consistently recommended on Reddit's r/CompTIA as the go-to free study resource. His paid practice tests are also widely used and priced fairly.

For candidates on a tight budget or preparing for CompTIA certifications specifically, Professor Messer is hard to beat on value. The question is whether his static practice tests are sufficient for exam-day readiness, or whether the adaptive practice layer that Certsqill provides meaningfully increases pass rates.

Comparison Table

Free Content Quality

Professor Messer's free video courses are exceptional — genuinely one of the best free resources in the entire certification prep ecosystem. His A+ course covers every CompTIA objective in order, his Security+ content is aligned to SY0-701, and his Network+ videos are comprehensive enough that many candidates use them as their sole video resource. The free content is not dumbed down or incomplete; it is the full course.

Certsqill does not offer free video content. You can try 20 practice questions per certification free, which is enough to evaluate quality but not a substitute for a full course. The right comparison is Messer's paid practice tests vs. Certsqill's paid course — and on that comparison, the platforms compete more directly.

Practice Test Depth

Professor Messer's paid practice exams cost $27–$39 per certification exam (depending on the cert) and include around 500 questions per exam with multiple practice test versions. The questions are well-written and aligned to CompTIA objectives. The rationales are brief but accurate. For many candidates, this level of practice is sufficient to pass.

Certsqill's practice library (500 questions per cert) is adaptive and includes detailed explanations that go beyond brief rationales to explain why each wrong answer is wrong — the critical skill for passing CompTIA's Performance-Based Questions (PBQs) and scenario questions. It's a one-time purchase per certification — $49 for Security+ (from $29 for foundational certs) — with no subscription; both Messer's practice exams and Certsqill are one-off costs per cert, and Certsqill adds a detailed explanation on every answer plus weak-spot analytics.

Explanation Depth

Professor Messer's platform offers no deeper explanation layer. Practice test rationales are static text written at publication time. If an explanation does not make sense to you, you are on your own — search YouTube, Google, or Reddit for a better explanation.

Certsqill's detailed explanations are embedded directly in practice sessions. When a Security+ question about cryptographic algorithms does not click, the explanation lays out why AES is used here instead of RSA in a contextual, plain-English write-up. For CompTIA PBQs that require multi-step troubleshooting reasoning, a detailed explanation that walks through the scenario is significantly more useful than reading a terse static rationale.

Certification Coverage

Professor Messer covers CompTIA certifications exclusively: A+, Network+, Security+, CySA+, CASP+, Cloud+, Linux+, and a few others. His deep focus on CompTIA makes his materials excellent for those certs, but the platform ends there.

Certsqill covers 100+ certifications including all CompTIA exams plus AWS, Azure, GCP, Cisco, Kubernetes, CISSP, and more. If you are building a multi-certification career path, Certsqill's breadth means you never have to switch practice platforms.

Verdict

Professor Messer's free videos plus Certsqill's adaptive practice is arguably the highest-value CompTIA preparation combination available. Use Messer's free courses for concept instruction, then use Certsqill for expert-developed adaptive practice. Total cost: Messer's free videos plus a one-time $49 Certsqill course (from $29 for foundational certs). Compared to paying $300+ for a classroom course or $50+/month for premium all-in-one platforms, this combination is unbeatable on value.

Frequently Asked Questions