CorXL

What CorXL does

CorXL LLC is a Zurich, Switzerland-based medical education company founded by cardiologists Jan Steffel, MD and David Hürlimann, MD. The company develops mobile applications for iOS and Android that deliver case-based self-assessment training to healthcare professionals in advanced cardiac device management and cardiac arrhythmias. Its portfolio consists of two products: Cardiac Device Challenge, which covers pacemakers, implantable cardioverter defibrillators (ICDs), and cardiac resynchronization therapy (CRT) through 150 case-based questions with scrollable programmer strips and device settings; and Cardiac Arrhythmia Challenge, which covers cardiac arrhythmias and invasive electrophysiology through 150 questions with zoomable ECGs, tracings, and radiographs across novice-to-expert difficulty levels.

The underlying technology is a content-driven mobile app architecture with interactive media rendering (zoomable images, scrollable strips) rather than any algorithmic or AI-based learning engine. Distribution is exclusively through the iOS App Store and Google Play Store on a freemium model: users download the apps free with 4 sample questions and unlock the remaining content via three in-app purchase packages per app (pricing not publicly disclosed). The company has accumulated 50,000+ downloads across its two apps.

The target customer base is healthcare professionals — including cardiologists in training preparing for EHRA and IBHRE board exams, board-certified cardiologists, electrophysiology fellows, and allied professionals such as specialized nurses, nurse practitioners, and technicians. CorXL's Cardiac Device Challenge is included in the British Heart Rhythm Society Certification Reading List and the European Heart Rhythm Association CPEP suggested reading list, and received a peer-reviewed mention in the European Heart Journal in 2013. The business is bootstrapped, founder-led, and shows no disclosed institutional investors, funding rounds, M&A activity, or enterprise contracts.

Name

CorXL

Legal name

CorXL LLC

Website

https://corxl.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

51–100 employees

Short description

CorXL LLC is a Zurich-based medical education company founded by two cardiologists that builds iOS and Android apps — Cardiac Device Challenge and Cardiac Arrhythmia Challenge — offering case-based self-assessment training for cardiologists, electrophysiology fellows, and allied healthcare professionals preparing for EHRA and IBHRE certifications.

Ownership category

akta.pro rank

Product category

Medical Education Software

NAICS

Software Publishers (5132), Educational Support Services (611710)

SIC

Services-Prepackaged Software (7372), Services-Educational Services (8200)

akta.pro primary industry

Healthcare & Clinical Simulation (Surgery, Nursing, EMT, Patient Interaction) (EDAFAJAC)

akta.pro secondary industries

Medicine & Allied Health (Clinical) (EDAGABAG), Simulation & Scenario-Based Learning Authoring (EDAFAHAD)

Keywords

• Cardiac device training
• Arrhythmia education apps
• Medical board preparation
• ECG interpretation learning
• Cardiology mobile education

Headquarters

HQ city

Zürich

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Software

Cost components

Technology or R&D, Personnel, Operations, Marketing or Sales, Others

Revenue model

1. In-app purchases (question packs): Free app with 4 sample questions. 150 questions total available across three in-app purchase packages. Users pay per question pack to unlock additional content within the app.
2. App store distribution: Distribution through iOS App Store and Google Play Store. Users download free versions from app stores and make in-app purchases for additional question content.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

CorXL develops and sells mobile medical education apps that help cardiology trainees and practicing electrophysiologists master cardiac implantable electronic devices and arrhythmias through interactive case-based questions. The company's two flagship apps — Cardiac Device Challenge and Cardiac Arrhythmia Challenge — are distributed on iOS and Android with free base content and paid in-app question pack unlocks covering pacemaker/ICD troubleshooting and arrhythmia interpretation.

Product overview

CorXL is a medical education company offering two mobile applications for cardiac device training: Cardiac Device Challenge and Cardiac Arrhythmia Challenge. Both apps are available on iOS and Android platforms and provide case-based self-assessment questions for healthcare professionals. The apps feature free sample questions with additional content (150 questions per app) available through in-app purchases. The product portfolio supports board exam preparation for general cardiology, EHRA, and IBHRE certifications.

Differentiator

Problem solved

Functional benefit

Brands

• Cardiac Device Challenge: iPad and iPhone application for healthcare professionals involved in the care of patients with implantable cardiac devices. Contains case-based questions on pacemakers, implantable Cardioverter defibrillators (ICDs) and cardiac resynchronization therapy (CRT).
• Cardiac Arrhythmia Challenge

Products and services

• Cardiac Device Challenge

Named customers4 records

Segments3 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Emerging players

• Picmonic: Visual learning and spaced-repetition app for medical and healthcare students, with case-based and mnemonics-driven content. Comparable as a mobile-first medical education subscription product aimed at healthcare professionals and trainees.
• Lecturio: Medical education platform offering video lectures, question banks, and study planners for medical students and clinicians preparing for exams. Comparable business model (subscription-based clinical content) and overlapping target audience with CorXL.
• Skyscape Medpresso: Mobile medical reference and education app distributor providing clinical decision-support tools and study resources to healthcare professionals via app stores. Comparable as a mobile app-store distribution model for paid medical education content.

Broad incumbents

• AccessMedicine (McGraw-Hill): Subscription medical education and reference platform from McGraw-Hill covering textbooks, questions, and case studies for medical students and clinicians. Comparable as an authoritative, expert-authored digital medical education resource with cardiology content.
• Osmosis (Elsevier): Medical education platform now part of Elsevier offering video content, questions, and study tools to health professional students and clinicians. Comparable as a digital, subscription-based medical education product targeting similar learner personas, though with a broader specialty footprint than CorXL.
• UWorld: Large-scale question bank and exam-prep platform widely used by US medical trainees across multiple specialties, including cardiology board prep. Comparable to CorXL as a paid self-assessment mobile/web tool for clinicians preparing for high-stakes certification exams.

Others

• Heart Rhythm Society (HRS): Professional society offering official board review courses, self-assessment tools (SAPT), and educational content for electrophysiologists. Comparable as an authoritative provider of EP/cardiac device certification preparation content; CorXL is even referenced alongside these bodies in its value proposition.
• Medtronic Education & Training: Cardiac device OEM that publishes free training content and apps for clinicians managing implanted devices (pacemakers, ICDs, CRT). Comparable as an adjacent ecosystem participant that produces competing cardiac device education content for the same end users CorXL targets.

Direct peers

• TrueLearn (BoardVitals): Specialized board-exam preparation platform for medical professionals, including cardiology subspecialties, using case-based questions and analytics. Directly comparable business model to CorXL's case-based question packs sold to healthcare professionals for certification prep.
• AMBOSS: Medical knowledge platform combining a clinical reference library with board-exam preparation question banks for physicians worldwide. Comparable as a paid digital tool serving cardiologists and other specialists preparing for board and certification exams.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CorXL