Free vs Paid IT Cert Practice Tests: An Honest Comparison

Search “free Security+ practice test” and you’ll find thousands of questions that cost nothing. So why does anyone pay?

Sometimes they shouldn’t. Free practice tests do real work at specific points in your prep, and a seller who pretends otherwise is insulting your intelligence. But free resources also have three structural failures that show up exactly when the stakes get high — and if you don’t know where the line is, you find it the expensive way, at a testing center, at $274 to $439 per attempt.

This post draws the line. Real prices, named products, and the honest version of “when free is enough.”

What free practice tests actually give you

Used at the right moment, free questions are genuinely useful for three things:

A baseline before you study. Twenty free questions on day one tell you roughly where you stand and what the question style feels like. You don’t need to pay anyone for that first gut-check, and you shouldn’t.

Format familiarization. If you’ve never seen a “choose the BEST answer” question — where two options are defensible and one is more right — free tests will introduce you to the genre. That alone kills some first-exam panic.

Micro-drills between study sessions. Ten free questions over lunch keeps material warm. The quality bar for “keeps material warm” is low, and free clears it.

Good free resources exist and we’ll say so by name: Professor Messer’s free video courses and practice questions are a staple of CompTIA prep for a reason. ExamCompass has offered free CompTIA practice tests for years. CompTIA itself publishes small sets of official sample questions. For a baseline and format exposure, start there and pay nothing.

The three places free quietly fails

1. Nobody is accountable for wrong answers

Free question sites make money on ads, not outcomes. When a free question’s “correct” answer is wrong — and if you spend time on r/CompTIA or Trustpilot reviews of question sites, you’ll find candidates complaining about exactly this — nobody is on the hook. You memorize the error, and you discover it on exam day, where a review of your purchase isn’t available.

This is the core economic difference, and it’s worth stating plainly: an ad-supported site gets paid whether you pass or not. A paid product with a money-back guarantee eats the refund when it fails you. Incentives aren’t everything, but they’re not nothing.

2. No readiness signal

The question that actually matters in your prep isn’t “can I answer questions?” It’s “am I ready to book?” That requires a large enough question pool that you aren’t re-seeing (and unconsciously memorizing) the same items, per-domain performance tracking against the real exam weights, and full-length timed simulation. Free resources, which are typically a few hundred questions with no tracking, structurally can’t tell you when you’re ready. You end up booking on vibes — and the voucher you’re betting is $274 (A+, per core), $399 (Network+), or $439 (Security+, CySA+), with no retake discount.

3. The exam’s hardest formats are missing

CompTIA exams open with performance-based questions — the interactive, do-the-task items most candidates fear most. Free resources are almost universally multiple-choice only. If the first time you meet a PBQ is on exam day, you’ll burn your first fifteen minutes and your composure on it. This is the single most consistent difference between free and paid prep, and it’s also where paid products differ most from each other (more below).

What “paid” actually costs, with names attached

Most comparison posts in this genre go vague right here, because the site writing them doesn’t want to publish its own prices next to competitors’. Here’s the table we’d want as a buyer. Prices checked August 2026 against each vendor’s public pricing; they may change.

Product	Price	What you get	Access
CompTIA CertMaster Practice	From $149 per exam	Official adaptive question practice	12 months
Boson ExSim-Max (CCNA)	$99	370 questions across 5 simulated exams, strong explanations	Subscription-based
Subscription question apps (Pocket Prep and similar)	$15–30/month	App-based question banks across many certs	While you pay
Crucial Exams (Security+)	Account-based; sells bundled exam vouchers at $373–492	~1,400 questions, flashcards, a handful of PBQs	Varies
IT Practice Exams	$59 once ($69 Security+, $79 CCNA)	1,250–2,650 original questions per exam, every answer explained, PBQ-style questions, 500-card flashcard deck	Lifetime, per exam version

Two honest observations about that table, including one against our own interest:

• If you only want a final readiness check and money is tight, a single month of a subscription app is the cheapest paid option — $15 to $30, cancel after. You give up depth and lifetime access, but as a one-time gate before booking, it’s a legitimate play.
• Boson’s CCNA reputation is earned. Their explanations are well regarded, and we’d rather say so than pretend otherwise. Our CCNA argument is arithmetic, not disparagement: 2,650 questions including 150 PBQ-style labs for $79 once, versus 370 questions for $99 on a subscription. Depth per dollar is the comparison that matters when you’re drilling a six-domain exam.

A note on pass-rate statistics

You will read claims like “students who use our tests pass 92% of the time.” Ask one question: measured how? No practice-test vendor runs a controlled study of its customers’ exam results; the honest ones don’t pretend to. What a good practice bank can legitimately give you is a readiness threshold — a track record of scoring, say, 85%+ on fresh full-length practice with no weak domain — which is a defensible standard for booking, not a guarantee dressed up as science. Any precise pass-rate percentage without a methodology behind it was invented for marketing. Including in our category; if we ever publish one, it will come with its receipts.

The one free option to refuse at any price: brain dumps

There’s a third category dressed up as free: “actual exam questions,” leaked and republished — brain dumps. Skip the ethics for a second and take pure self-interest: CompTIA’s candidate agreement, which you sign before testing, allows them to revoke certifications earned with unauthorized materials, and dump sites are the canonical example. You’d be risking the certification itself to save $59 on practice material — while memorizing answer keys of unverifiable accuracy instead of learning the material your first job will test daily. Every question in our banks is written from scratch against the published objectives, which is why practicing here carries zero ban risk. Free dump sites are not “free vs paid” — they’re a different product with a hidden price.

The decision rule, by study phase

Weeks 1–2 (orientation): Free, unapologetically. Get your baseline, learn the format, watch free video courses, read free study material — our own Study Library is free precisely because this phase shouldn’t cost anything.

The study weeks (building): This is where a paid bank starts paying for itself — not because free questions vanish, but because explanations become the product. In a good bank, every wrong answer teaches you why it’s wrong and why the near-miss options fail, which converts your mistakes into study material. If your budget is a hard zero, combine every free source you can find and be disciplined about verifying answers you doubt.

The final two weeks (the gate): This is where free structurally can’t help, because free can’t tell you you’re ready. Full-length timed practice, per-domain scores against real exam weights, PBQ exposure. Pay for this phase or walk in guessing — with a $439 voucher as your table stakes.

The candid summary: free practice tests are a real part of a smart prep plan, and the beginning of your prep should cost you nothing. What you’re paying for — from us at $59 to $79 once, or from a competitor — is verified answers with real explanations, the exam’s hardest formats, and a defensible signal that you’re ready to bet the voucher. That signal is worth more than it costs. The retake is the expensive practice test.