The critical care reference for physicians, nurses and medics in the ER, ICU, flight and EMS. Fully offline. No sign-in.
4.8 ★ from 1,145 ratings50,000+ clinicians in 13+ countriesBest-selling medical app since 2012
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Search drips, labs, protocols and calculators from the first screen. Nothing to log into, nothing to download mid-shift, and a fresh clinical brief every morning.
ICU drips
Enter the weight once. Concentration, yield and rate are worked out for all 37 infusions, with the standard mix shown for each.
EKG
30 synthesized rhythms run in real time. Pick an answer and see the criteria that separate it from its look-alikes: regularity, rate, P wave, PR interval and QRS.
800+ questions with the reasoning behind each answer, timed exams and 11 megacodes.
Learn moreMore than 500 Y-site drug pairs. Pick two drugs, see if they can share a line.
Learn morepH, PaCO₂ and HCO₃⁻ with anion gap, base excess and Winter’s formula, explained.
Learn morePractice waveforms on a live monitor. See how different lungs change the same breath.
Learn moreWeight-based pediatric references for the drugs and equipment you reach for least often.
Labs, capnography, hemodynamics, pacemakers, ECMO, procedures, and 100 playbooks for less common scenarios.
Fourteen years of their feedback shaped every screen. The quotes are theirs, from App Store reviews.
8,000 feet. No signal.
Pre-calculate RSI doses, check drips and work out O₂ cylinder time before the patient is loaded. Everything runs on the phone, so altitude and dead zones don’t matter.
“There is a lot to be said for removing cognitive load on the provider, specifically in emergency situations. The fact that the app is not dependent upon WiFi availability makes it my first go to for a ton of out of hospital uses”Jed Deep, international fixed-wing medevac
Shift change. Titrating a drip.
Know the rate to expect before you program the pump, check compatibility before you hang the line, and look up labs with typical ranges.
“As a new critical care nurse, this is essential to helping me with knowing what doses and rates to expect on my IV pumps when I program them.”beansandthings, critical care nurse
Three rooms. One code.
ACLS algorithms, rhythm recognition and pediatric references for ER nurses and physicians, one tap away between rooms.
“My fellow ER and ICU nurses as well as a lot of docs have also downloaded it after seeing it in action.”Tim H. in Texas, er and icu nursing
Back of the rig. 911 call.
Pediatric weights, RSI and drug references built for the field as much as for the hospital.
“this app is one of my most used references in my pocket on duty and off.”MedicRayRay, emt/paramedic in a 911 system since 1995
Recert next month.
800+ ACLS practice questions, megacode scenarios, rhythm practice, and a study library that stays useful after the exam.
“It has absolutely everything I could ask for when it comes to work, school, and Clinicals!”Steph~~ie, emt and paramedic student
One nurse. Every hat.
When there’s no pharmacist down the hall, the whole reference fits in your pocket, with no Wi-Fi needed.
“It’s so helpful in the little rural critical access hospital I work at where the nurse is also RT, pharmacist, and lab.”vickilyn74, rural critical access hospital
“…know that at 0345 you will still be able to find your info w/ one eye barely open!”
“I still double check my calculations with this app, and it is perfect every time. When seconds count in Emergency and Critical Care Medicine; This is the App you need!”
“This is HANDS DOWN the best app for emergency medicine. 911 EMS, or critical care transport.”
“It’s a straight forward reference that has the info you want and quickly accessible without having to search through the app to find it.”
“Over the past almost 3 decades I've been an ICU and ER nurse, currently full time flight nurse/medic for the past 13 yrs. I have gifted and recommend this app many times.”
“I love the clinical calculators and pediatric reference as well. The design is easy to use, aesthetically pleasing, and works without Wi-Fi.”
“Started using it the heaviest when I first started working as a flight paramedic. Saved my bacon more than once.”
“Consolidated 4 apps I’m currently using into just this 1 app!!!”
“I can recommend this app to any medical professional and I already have.”
Yes. Every feature works without a signal, including drips, IV compatibility, EKG practice, ABG and the full ACLS question bank. You don’t need an account or sign-in.
Critical care clinicians: emergency, ICU and hospitalist physicians, residents, ICU and ER nurses, flight and transport crews, paramedics and respiratory therapists. Students use it for clinicals and ACLS prep.
It includes 800+ clinician-reviewed practice questions, timed 50-question exams scored against the 84% pass line, and 11 megacode scenarios with debriefs. It supports personal exam prep only. It is not AHA-accredited and doesn’t issue a certification card.
Yes. Critical Med is on the App Store for iPhone and on Google Play for Android.
No. There’s no account and no personal information collected. Your preferences and favorites stay on your device.
No. Critical Med is an educational study and reference tool. It doesn’t provide diagnosis or treatment directives. Always follow your professional judgment and your facility’s protocols.
Questions, feedback or a feature you’d like to see? Email [email protected].