Useful notes alongside the videos
Learners value the notes as a companion to the videos when reviewing A+ and Network+ topics.
Professor Messer (James Messer)
Summary
Professor Messer offers free A+, Network+ and Security+ video courses. Optional paid products include course notes, practice exams and study bundles.
Good fit
- Candidates who want a complete free CompTIA course before spending anything
- Candidates who only want to add notes or a practice exam set on top of free videos
Less suited to
- Learners who want a more entertaining or hands-on course than a straightforward lecture
Learner Reviews
What learners praise
Practice exams with clear explanations
Learners praise the explanations and exam-style practice, although preferences differ when comparing question banks.
Plans & pricing
- Plans and pricing
- Free video courses; paid course notes, practice exams, audio and bundles are sold separately per exam
$30 for course notes, $30 for practice exams, $50 for both, $119 for the full success bundle (per exam)
- Free options
- Full video course for each CompTIA exam on YouTube and professormesser.com
- Access
- Videos are free to watch online. Paid products are downloads from your member account.
- Refunds
- Exam vouchers are non-refundable. Refund terms for notes and practice exams are not stated.
Courses & practice tests
Professor Messer (James Messer) resources included in our certification guides.
| Certification | Courses & tests |
|---|---|
| CompTIA Security+ | |
| CompTIA A+ | |
| Google Cybersecurity Certificate | |
| Google IT Support Certificate | |
| CompTIA Network+ |
Alternatives
Dion Training (Jason Dion)
CompTIA courses, practice exams and discounted exam vouchers
Pocket Prep
Short, daily mobile practice quizzes for over 170 certification and licensing exams
Udemy
An open marketplace for cert-prep video courses and practice tests, sold individually or through the Personal Plan subscription.
Frequently asked questions
Is Professor Messer's course really free?
Yes. The full video course for each CompTIA exam is free on YouTube and professormesser.com. Notes, practice exams, audio and bundles are optional paid products.
How much do the paid products cost?
For Security+ SY0-701, course notes are $30, practice exams $30, both together $50, the audio course $70 and the full success bundle $119. Printed books are $50 each. Network+ has no practice exam product.
Can I get a refund on the paid products?
Refund terms for the digital products are not stated. Exam vouchers bought on the site are non-refundable.
Professor Messer or Dion Training?
Messer's videos are free and his paid add-ons are cheaper. Dion's course is paid and includes its own practice exams. Learners disagree on whose practice exams are closer to the real test.
Last updated October 2026