
Certo: Exam Prep Practice Test
PMP, CNA, PTCB, Security+, AWS
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About
Practice tests for 26 certification exams: PMP, CNA, PTCB, CompTIA Security+, AWS, CPA, CFA, Azure and more.
Every question is original, written to the public exam outline, with an explanation for every answer choice.
Take a full timed mock exam, get a score out of 1000, and see which topics to fix before test day.
WHY CERTO
- Original questions, zero risk. Every question is written to the public exam outline. No leaked or brain-dump content, so no NDA or ban risk, just legitimate high-quality practice.
- Explanations that teach. Each question shows why the correct answer is right AND why every other option is wrong, so you learn the concept, not just the answer.
- A real exam simulation. Full-length, timed, weighted to the official blueprint, and scored on a 1000-point scale with a 700 pass line and a per-topic breakdown, so you know when you are truly ready.
- Spaced repetition that works. Missed and flagged questions return on an SM-2 schedule, right when you are about to forget them.
- Flashcards, built in and your own. Study key terms and create your own cards that track alongside the deck.
- Offline and private. No account, no sign-up, no data collection. Everything works on the plane.
PASS GUARANTEE
Score 700 or higher on a full in-app simulation, sit the real exam within 30 days, and if you do not pass, your next Certo exam is free (All-Access subscribers get 3 extra months free). Full terms: https://blackhartconsulting.com/certo/terms.html#pass-guarantee
26 EXAMS ACROSS 5 INDUSTRIES
Technology (AI-103, AZ-104, AI-900, AZ-900, SC-900, DP-900, AWS Cloud Practitioner, CompTIA Security+, Google Cloud Digital Leader and more), Business and Project Management (PMP, CAPM, Certified ScrumMaster, Lean Six Sigma), Finance (CPA Regulation, CMA, CFA Level I, Enrolled Agent), Legal (Certified Paralegal, Multistate Bar, Notary, Contract Manager), and Healthcare (CNA, Pharmacy Tech, Medical Coding, Phlebotomy).
Seven exams are fully open (AZ-900, AI-900, SC-900, DP-900, CAPM, CNA and Notary), and every paid exam includes a free sample. Most people study for 4 to 10 weeks, so All-Access comes as a 3-month plan with a 7-day free trial, plus monthly and yearly plans. Prefer to pay once? Unlock a single exam, an industry bundle, or All-Access Lifetime.
Certo is independent study material and is not affiliated with, authorized, or endorsed by any certification body. Exam names and codes are trademarks of their respective owners.
All-Access is an auto-renewing subscription, billed monthly, every 3 months, or yearly at the price shown in the app. Payment is charged to your Apple Account at confirmation of purchase, or when a free trial ends. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://blackhartconsulting.com/certo/privacy.html
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What's New in Certo
1.1.2
October 26, 2026
Answer options now show letters A to D, and explanations refer to those same letters. Plus a clearer App Store page.
13
Subscriptions & In-App Purchases
Certo All-Access (Yearly)
Every Certo exam across all five industries.
$49.991 Year
7 Days trial



