CertBench vs Boson ExSim, honestly
Boson's ExSim-Max is the practice exam most often recommended on r/CompTIA, and that reputation is earned — if you want the closest thing to sitting the real Security+ exam a week before you sit it, Boson is excellent. We're not going to pretend otherwise.
The comparison that actually matters is what each tool is for. Boson is a final-weeks exam simulator you run two or three times. CertBench is the daily system for the two months before that: an adaptive plan that decides what to study each day, spaced repetition on everything you miss, and a readiness score that tells you when you're prepared. Different jobs; here's the honest breakdown.
Choose Boson ExSim if
- You want the most exam-realistic full-length simulation available and don't mind paying ~$99 per exam for it
- You're in your final two weeks and mainly need dress rehearsals, not a study system
- You prefer owning software outright over a subscription
Choose CertBench if
- You want a system that tells you what to study every day, not just how you did on a mock
- You want spaced repetition on your misses built in, instead of managing Anki separately
- You want to try everything free first — no account — then pay only for the months you actually study
Side by side
| Feature | CertBench | Boson ExSim |
|---|---|---|
| Full-length exam realism | Weighted, timed practice exams | Best in class — the closest sim to the real thing |
| Explanations | Every question, teaching why the wrong answers are wrong | Excellent, famously detailed |
| Adaptive daily study plan | Yes — rebuilt daily from your performance | No |
| Spaced repetition | Built in on every miss | No |
| Readiness score | Domain-weighted, confidence-penalised | Per-exam score reports |
| Interactive PBQ practice | Playable simulations in the browser | Limited |
| Free to try | Readiness check, practice-test previews, PBQ examples — no account | Demo only |
| Price | Pro $19/mo or $39 per exam cycle | About $99 per exam |
Competitor details and prices are approximate as of mid-2026 — always check their site for current offers.
The fastest way to decide
Build your study plan and see the readiness score and daily plan on your own results.
Build my study planComparing more options? See the full 2026 guide.
Frequently asked questions
Is Boson ExSim worth it for Security+?
If you want maximum exam-day realism and can afford it, yes — ExSim-Max has a deserved reputation for matching the real exam's difficulty and style, with excellent explanations. Many people pair a daily study system with one or two Boson runs in the final fortnight. The two approaches complement each other more than they compete.
Can I use CertBench and Boson together?
That's arguably the strongest stack: CertBench for the daily adaptive plan, spaced repetition, and readiness tracking across your whole prep, then a Boson simulation in the last week or two as a dress rehearsal. If your CertBench readiness score and a Boson mock agree you're ready, you almost certainly are.
Why is CertBench so much cheaper than Boson?
Different models. Boson sells per-exam licences (~$99 per certification exam). CertBench's tools are free to try with no account — the readiness check, practice-test previews, and PBQ examples — and Pro is $19/month or $39 for a three-month exam cycle for the full study system: unlimited everything. Prices in USD, adjusted regionally, and Pro carries a pass guarantee.