Slide-based lessons
179 lessons delivered as clean, paginated slides you can move through a card at a time — with an "Ask Coach about this" button on every slide.
179 lessons · RCIS + RCES RCIS & RCES · Cath Lab & EP
The complete codex for
invasive cardiology.
One app for the whole exam and the whole floor: 179 lessons, 2,198 practice questions, four blueprint-matched full-length mock exams, live and timed, and Cardiac Coach — an AI tutor grounded in the same curriculum, ready any hour.
Free account, no card required — sample lessons and real practice questions included. Upgrade inside the app when you're ready.
Want to judge the quality before you commit? Work through 25 free RCIS questions or 25 free RCES questions — real items, worked explanations, no signup.
179Curriculum lessons
2,198Practice questions
4Full-length mock exams
439Curriculum illustrations
Illustration of the Cardiac Coach exchange — not a screenshot of the app.
The volume
Everything the exam covers, in one place.
Cardiac Codex is a full learning system, not a question bank bolted to a PDF. Seven parts work together — read, drill, self-test, and ask — across both the RCIS and RCES blueprints.
Practice question engine
2,198 questions with worked explanations, multiple formats including select-all-that-apply, bookmarking, and one-tap review of everything you missed.
2,198 questionsFull-length mock exams
Four complete forms — two RCIS and two RCES — each 170 items to mirror the length of the real CCI exam, and matched to the certification blueprint, so a practice run looks like the real thing. All four forms are live now, timed and scored, with question-by-question review afterwards.
4 forms · 170 items each · live nowConcept illustrations
439 illustrated figures — anatomy, waveforms, and device diagrams — cross-linked from lessons and questions so the picture is always one tap away.
439 illustrationsFlashcards & mastery
Spaced flashcards for high-yield facts, plus concept-level mastery scoring that shows exactly where you're solid and where to spend your next hour.
Adaptive mastery trackingCardiac Coach (AI)
A tutor that answers in plain English, grounded in the curriculum — reachable from any lesson or missed question. It cites what it knows and says so when it doesn't.
Grounded, not guessingThe Lab — interactive drills
Hands-on drills against simulated studies, where you read the trace and act instead of picking from four options. Signal scrolls a live intracardiac electrogram and asks you to call the rhythm before the timer runs out.
Signal · EP · more drills in buildCardiac Coach
A study partner that's grounded, not guessing.
Most "AI tutors" are a blank chat box that will confidently invent an answer. Coach retrieves from the real Cardiac Codex curriculum before it responds — so the help you get is tied to what you're actually being tested on.
- Retrieved from the curriculumFull-text search over the same lessons and concept glossary you study — not freeform generation.
- Knows your contextAsk straight from a lesson slide or a question you just missed — Coach already knows what you're looking at.
- Short answer firstA few sentences or labeled steps, then it offers to go deeper — instead of burying you in a wall of text.
- Honest about limitsWhen something isn't in the curriculum, Coach says so instead of making it up.
Cardiac Coach is a study aid, not clinical advice. Always verify care decisions with a qualified colleague and your institution's protocols.
Illustration of a grounded Coach answer — not a screenshot of the app.
How it works
Point yourself at the exam and go.
Set up once, then let the app steer your study time to where it counts.
1
Pick your track
Choose RCIS, RCES, or both, and set your target exam date. A short diagnostic finds your starting point so you're not re-reading what you already know.
2
Learn & drill
Work through slide lessons, hammer practice questions, flip flashcards, and ask Coach whenever something doesn't click — all grounded in one curriculum.
3
Prove it
Watch concept mastery climb, review every question you miss, and sit full-length mock exams built to the blueprint before the day that counts.
Who it's for
Built for the floor, not just the exam.
Whether a certification date is on your calendar or you just want fast, grounded answers mid-shift — Cardiac Codex speaks the language of the cath lab and the EP suite.
RN
Cath Lab & EP nurses
Solidify hemodynamics, pharmacology, and procedural steps — and get a grounded answer without paging the charge nurse.
Tech
CVIS technologists
Procedural, imaging, and hemodynamic questions answered in context, backed by a curriculum built for invasive cardiology.
RCIS
RCIS candidates
Cath lab hemodynamics, imaging, and diagnostic and interventional work — mapped to the RCIS blueprint end to end.
RCES
RCES candidates
EP studies, device therapy, and arrhythmia management — a dedicated track, plus two full-length RCES mock exams, live and timed.
Pricing
One product. Nothing locked.
There are no tiers and no locked chapters. Either plan unlocks the entire app — all 179 lessons, all 2,198 questions, every illustration, Cardiac Coach, and all four full-length mock exams, live and timed.
6-Month Pass
$250 one-time
Six months of everything, priced for one focused run at your exam. No subscription, no auto-renew — access simply ends when the term does. Employer-friendly: checkout issues a real numbered invoice you can expense.
Start free →Monthly
$49 / month
The same complete access, month to month. Cancel anytime from inside the app and keep everything through the month you've paid for.
Start free →The Pass Guarantee
We stand behind Cardiac Codex. Complete every module with 80%+ mastery and both mock exams for your credential with a 75%+ score — and if you still don't pass your CCI exam, we'll add 90 more days of full access, free. Just send us your score report.
One guarantee per account; the exam must be taken during your access period. Your study metrics are tracked automatically in the app — no paperwork beyond the score report.
Prices in USD. Sales tax is calculated at checkout. Buying happens inside the app: create your free account first, judge the sample content, then upgrade when you're ready.
Have an access code? Create a free account and redeem it inside the app for full access — no purchase needed. Codes are single-use and unlock the same complete curriculum and Coach.
FAQ
Questions, answered.
What exactly is Cardiac Codex?
A complete exam-prep and learning app for the RCIS and RCES certifications — and for working cath lab and EP staff. It bundles 179 slide-based lessons, 2,198 practice questions, 439 curriculum illustrations, flashcards, mastery tracking, and Cardiac Coach, an AI tutor grounded in the same curriculum. Four full-length mock exam forms are live now, timed and scored.
Does it cover both RCIS and RCES?
Yes. The curriculum spans both blueprints — RCIS (cath lab hemodynamics, imaging, and procedural work) and RCES (EP studies, device therapy, and arrhythmia management). You pick your track — RCIS, RCES, or both — and the app tailors your study around it. Of the four mock exam forms, two target RCIS and two target RCES; all four are live now, timed and scored.
How is Cardiac Coach different from a normal chatbot?
Coach answers by retrieving from the real curriculum — full-text search over the lessons and concept glossary — instead of generating freeform. You can ask it right from a lesson slide or a question you just missed, so it already has the context. When a topic isn't covered, it tells you rather than guessing. It's a study aid, not a substitute for clinical judgment.
How much does it cost?
Two plans, both unlocking everything: a $250 6-Month Pass (one-time, no auto-renew — it simply ends) or $49/month (cancel anytime). There are no tiers and no locked chapters — either plan opens the whole curriculum, Cardiac Coach, and all four mock exams. Create a free account first and judge the sample content before paying anything. See pricing for the Pass Guarantee details.
I have an access code — how do I use it?
Create a free account in the app and redeem your code from the redemption screen. It unlocks the same complete access as a paid plan, with no purchase required. Access codes are single-use.
Is it affiliated with CCI or a certifying body?
No. Cardiac Codex is an independent study tool and is not affiliated with, endorsed by, or administered by Cardiovascular Credentialing International (CCI) or any other certifying body. Working through the content doesn't guarantee a passing score — it's built to make that outcome a lot more likely.
When can I buy it?
Right now. Create a free account, look around the sample lessons and questions, and upgrade to the 6-Month Pass or Monthly plan from inside the app whenever you're ready.
What's your refund policy?
Fees are generally non-refundable, including for partial periods, except where required by law. If something has gone wrong on our end, email [email protected] and we'll look at it case by case. Full terms are in our Terms of Service.
What devices does it run on?
Any modern browser on a phone, tablet, or computer — there's nothing to install. Native iOS and Android apps are planned but not released yet, so today you use it on the web. An internet connection is required; there's no offline mode at the moment.
How long does access last, and does it auto-renew?
The 6-Month Pass lasts exactly six months and does not auto-renew — access simply ends when the term does, and you won't be charged again unless you choose to buy again. The Monthly plan renews each month until you cancel, which you can do anytime from inside the app; you keep access through the month you've already paid for.
Does the content stay current with the blueprint?
Yes. The curriculum is written against the current CCI blueprints for RCIS and RCES, and we revise it as CCI updates them. Content is under continuous review during beta — if you spot something wrong, there's a report button on every question and lesson, and we'd genuinely like to hear about it.
Can I buy for my whole lab or department?
Not yet as a self-serve option, but this comes up often and we want to support it. Email [email protected] with how many people you're covering and we'll work something out.
Open now
Be ready before your exam date is.
Create a free account, work the sample lessons and questions, and unlock the full codex when you're ready. No card required to start.
Already studying with us? Log in.