CorePendium vs Antibiotic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CorePendium
This app provides a comprehensive, continuously updated, and peer-reviewed clinical reference for Emergency and Urgent Care Medicine. It features integrated multimedia, offline access, intuitive navigation, and medical calculators, making it an essential tool for medical professionals on the go.
- Expert-backed, continuously revised content
- Integrated media library (ECGs, X-rays, videos, audio)
- Offline access to all content
- Intuitive navigation with Rapid Access and Deep Dive sections
- Integrated medical calculators
- Links to EM:RAP knowledge base content
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The textbook is dead. Long live CorePendium! CorePendium is the first truly comprehensive, continuously updated, peer-reviewed, multimedia clinical reference for Emergency and Urgent Care Medicine. Download the CorePendium App and bring the best clinical reference text with you anywhere in the world, regardless of connectivity. With your EM:RAP account, the CorePendium App allows you to join over 65,000 members of the CorePendium community. The CorePendium App gives you… • EXPERT-BACKED CONTENT — Written, edited, and peer-reviewed by a team of over 800 leading academics and practitioners, every CorePendium chapter is continuously revised by leading experts in emergency medicine and beyond. • INTEGRATED MEDIA — Comprehensive learning requires more than just words. Dive into our constantly growing media library of ECG’s and X-rays, as well as expertly-produced videos and audio segments. Look, listen, and learn, all without leaving the CorePendium App. • OFFLINE MODE — With new chapters being added and updated frequently to reflect the latest literature and practice guidelines, the CorePendium App makes sure you always have the newest information at your fingertips, 24 hours a day. The app looks for updates to its offline database every time you’re active online, so that you have the answers you need, no matter what. Do you want access to our skillfully-shot procedure videos and expert commentary away from a wireless connection? You can choose to download our audio and video content to ensure access when you need it most. • INTUITIVE NAVIGATION — Designed to prioritize all of the crucial information and media needed for the critical patient, CorePendium’s ‹Rapid Access› section gives you the quick insights you’ll need at the bedside. If you are looking for more background, the ‹Deep Dive› section provides all the information you’ll need to know about a topic. Sleek chapter sidebars, internal searches, search filters, and curated tabs ensure you can find what you need when you need it. • MEDICAL CALCULATORS — Get all of the commonly used clinical scoring and decision tools you need, with important interpretation data compiled by some of medicine’s foremost experts just a thumb slide away. Our calculators are also integrated with the content that uses it most. • PART OF THE EM:RAP KNOWLEDGE BASE — CorePendium is just one piece of the EM:RAP universe. The CorePendium App takes full advantage of its special connection to the most listened to programs in Emergency and Urgent Care Medicine by integrating that content. With continuously updated links to video, conference content, and podcasts you’ll always get the most cutting-edge answers. • INTERNATIONAL — CorePendium is for the whole world. We have an international advisory board that aims to address emergency care for patients and practitioners in all of the various environments where it is practiced. • EDITORIAL INDEPENDENCE — CorePendium is written by clinicians for clinicians, without the support of advertising or industry. With the CorePendium App you just get the best information, current and expertly reviewed. • THE REFERENCE OF RECORD — Accessed millions of times, CorePendium is already the reference textbook used by residency training programs and frontline clinicians the world over.
Antibiotic
This app provides quick, evidence-based antibiotic recommendations for emergency department clinicians. It features simple navigation, instant treatment suggestions, and customizable dosing based on patient factors, helping healthcare professionals make confident treatment decisions efficiently.
- Streamlined antibiotic selection
- Instant treatment recommendations
- Customizable dosing by age/weight
- Evidence-based clinical guidelines
- Fast access to detailed information
- Designed for emergency providers
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Antibiotic is your streamlined, bedside resource for swift and confident antibiotic selection in the emergency department. Designed by practicing emergency physicians and built for the high-paced clinical environment, this app ensures you’ll spend less time searching through lengthy references and more time delivering top-notch patient care. Key Features: Super-Simple Navigation: Antibiotic’s clean, intuitive interface helps you rapidly find the recommended treatments for common bacterial infections encountered in emergency medicine. With straightforward condition categories—CNS, Respiratory, Gastrointestinal, Genital, and more—you can jump directly to the guidance you need. Instant Recommendations: Each infection page provides an at-a-glance regimen that cuts through the noise. No more flipping through bulky references; instantly see first-line antibiotic choices, proper dosages, and recommended adjunct therapies right where you need them. Quick Customization & Filters: Adjust recommendations based on patient-specific factors such as age group. Get immediate dosing estimates tailored to patient weight, ensuring precise and appropriate therapy. Moving from a standard adult regimen to pediatric dosing is as simple as a tap. Evidence-Based & Up-to-Date: Content is curated from trusted, current clinical guidelines and references commonly used in emergency medicine. You can feel confident that the app’s suggested regimens align with best-practice, evidence-based standards. Fast Access to In-Depth Information: While the main focus is speed and simplicity, Antibiotic also includes detailed dosing information when you need to drill down further. Need to confirm a recommended dose for a heavier patient or just want a refresher on why a particular agent is preferred? It’s all there, one tap away. Save Time Under Pressure: Emergency clinicians work against the clock. Antibiotic app’s lightning-fast interface and straightforward guidance let you make critical treatment decisions quickly. Achieve efficiency in your workflow and reduce cognitive load during your busiest shifts. Designed for All ED Providers: Whether you’re an attending physician, resident, PA, NP, pharmacist, or nurse working in emergency or urgent care settings, Antibiotic helps you deliver consistent, high-quality care to every patient, every time. This is the resource you’ve been waiting for: a reliable, speedy, and clinically actionable antibiotic guide you can trust in your pocket. Disclaimer: This application is not intended to be used by non-clinicians. If you are not a clinician please seek professional medical attention.
Screenshots
Verdict
CorePendium and Antibiotic both sit at 4.9 stars, but that hides the real split: 100% of Antibiotic's written reviews are positive against 67% of CorePendium's. Antibiotic also leads on monetization model (free vs freemium) and update cadence (every 6 days vs monthly). CorePendium's advantage is ratings volume (1.4K vs 4). On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for CorePendium against 5.0 for Antibiotic. That said, the two scores are not equally well evidenced: CorePendium has 1.4K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 67% of CorePendium's written reviews are positive against 100% of Antibiotic's.
CorePendium ships an update monthly, Antibiotic every 6 days. The most recent releases landed on September 23, 2026 and September 15, 2026 respectively.
| Parameter | CorePendium | Antibiotic |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (1.4K ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.4K — better | 4 |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 49 MB | 49 MB |
| Age rating | 17+ | 17+ |
| Developer | EM:RAP, Inc. | Tom Fadial |
Customer experience
CorePendium
Antibiotic
Bugs and requests
CorePendium
Reported bugs
2 issues- Crashes on launch
- Compatibility issues with older devices
Requested features
3 requests- iPad version
- Ability to track progress and bookmark content
- Video playback controls (speed, rewind)
Antibiotic
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CorePendium
No in-app purchases
Antibiotic
No in-app purchases








