The best comprehensive review for the USMLE Step 1 directly linked to high-yield facts from Dr. Le's “First Aid for the USMLE Step 1,” this essential study guide offers board-style questions and answers, easy-to-navigate, high yield explanations for correct and incorrect answers.

The Premium Version includes:

• 640+ practice questions
• Detailed explanations with images
• Developed by experts
• 330+ tough quiz questions
• 130+ high-yield images, diagrams, and tables
• Unlimited access to ALL categories:
• Biochemistry, Embryology
• Microbiology, Immunology
• Pathology, Pharmacology
• Endocrine System And more!
• Detailed results tracking

Life is full of challenges but studying for the USMLE doesn't have to be one of them. With the First Aid Q&A for USMLE Step 1 app, everything you need to know to ace the exam is right at your fingertips. What could be easier? No more lugging around heavy textbooks and review guides. This dynamic app is certain to lighten your load. With questions and detailed explanations covering topics included in the USMLE and medical boards, this app will put you squarely on the path to success.

By flagging questions as you go, this comprehensive study tool, enables easy review of problem areas. Detailed analytics allow users to review their statistics and even uncover their category strengths and weaknesses. By offering a rigorous review of key concepts and facts, this app gives users the knowledge they need to master the USMLE and other medical exams and begin rewarding professional careers.

Call us at 319-246-5299 and email us at with any questions.

About the Senior Editors:

Tao Le, MD is Assistant Clinical Professor of Pediatrics in the Division of Allergy and Immunology at the University of Louisville. He is also affiliated with the Division of Allergy and Immunology at The Johns Hopkins University School of Medicine. Dr. Le has been writing First Aid books and preparing medical students for the boards for almost 20 years.

James A Feinstein is a practicing pediatrician and pediatric health services provider. He attends in the Special Care Clinic at The Children's Hospital Colorado. He is also a research fellow at the University of Colorado School of Medicine.

What's New

Version 5.7.2

This version includes a few improvements to make your experience smoother.

Let us know what you think by emailing us at or by leaving a 5-star review.

Ratings and Reviews

4.7 out of 5

35 Ratings

35 Ratings

It's practice


It works for practicing the questions but there are some glitches like others have mentioned. There isn't any way to only answer the only questions that you haven't seen yet. So, you'll finish a set it will say you haven't completed 3 or 4 but then when you try to go back, there is no way of just going through those. (Either that or it doesn't count them/have them to answer.)
Also, I have come across questions where the response set or the explanation has been swapped between questions.
I was able to download to other devices, but it looks like it will make you pay for it. I held my breath and hit ok and then it popped up with a message that said I had already purchased it and downloaded it without charging. That said, it doesn't communicate between the two which question you have already completed so I have ended up just using my phone.



This app is ok/good. It reviews high yield facts but its questions seem to lack depth and challenge as compaed to U world. The same goes for the answer explanations in the app- but that may not be necessarily bad if you like straight forward q and a. Images need to be in color or improved to be morerepresentative. Despite this, the full app provides 986 questions which are accessible without an internet connection, which is a plus if you are not in a wifi hot spot and also because the shear volume of questions will provide breadth of topic coverage. The interface is ok all though if you zoom in, the text is not wapped to the window. Also, the swipe feature in the browse mode seems to have been fixxed. If you have some extra money on the side you shouldtry out this app to have a quick but basic q and a set at your finger tips otherwise try out the free version and see if it fits your taste.



Questions are decent for reviewing high yield first aid info. Certainly some dumb questions though. Biggest prob is browse mode. Swipe to go to the next question...then boom you just skipped 3 questions inadvertently and finished the quiz. Now you can look at the quiz with every answer choice and explanation exposed, bummer you didn't get a chance to actually practice those last three questions. This gets very annoying/frustrating, and board prep is brutal enough without halfassed programming.


Higher Learning Technologies LLC
98.5 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
You must be at least 17 years old to download this app.
Frequent/Intense Medical/Treatment Information
Infrequent/Mild Mature/Suggestive Themes
Infrequent/Mild Sexual Content and Nudity
© 2017 by The McGraw-Hill Companies, Inc.
In-App Purchases
  1. USMLE Step 1 First Aid Premium $44.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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