The Best Physiology Apps for Medical Students in 2026

No single app teaches all of physiology. The combination that works is a clear explainer (TeachMe Physiology or Osmosis), a way to see the structures the physiology happens in (RadioAnato AI, with 3D anatomy and histology), a simulator for the cardiovascular system (Harvi), and Anki or flashcards to keep it.

What a physiology app should do

• Explain mechanisms step by step, not just list facts.
• Show the structure where the mechanism happens: the valve, the nephron, the alveolus.
• Let you change a variable and watch the result, which is how physiology is examined.
• Test you with cases and questions.

The best physiology apps and resources

1. 01RadioAnato AI

   Best for: seeing the structures behind the physiology

   The DecodeMed app. Physiology is easier when you can see where it happens: the chambers and valves of the heart in 3D, cardiac muscle under the microscope, the kidney on CT. Ask the AI tutor and it answers with those views; the anatomy, radiology and histology atlases are free on the web. Free download; the AI tutor is a subscription.

2. 02TeachMe Physiology

   Best for: free, clear articles by system

   Short articles organised by system, from cardiovascular to renal and endocrine, that work well on a phone.

3. 03Osmosis

   Best for: short animated videos

   Concise videos with questions and flashcards. Subscription, often discounted through universities.

4. 04Physeo

   Best for: USMLE-style physiology review

   Videos and mnemonics aimed at Step 1 physiology. Subscription.

5. 05Physiology Lange Flash Cards

   Best for: case-based flashcards

   Flashcards that apply physiology to clinical cases. Free to download, with content unlocked by purchase.

6. 06Harvi

   Best for: simulating the cardiovascular system

   An interactive cardiovascular physiology textbook built on a simulator: change preload, afterload or contractility and watch pressures and volumes change. A free basic version is available.

7. 07Anki

   Best for: remembering values and relationships

   Spaced repetition for normal values, formulas and cause-and-effect chains. Free on desktop and Android.

Study it in RadioAnato AI

RadioAnato AI, the DecodeMed app, puts 3D anatomy, CT and MRI studies, histology slides and an AI tutor that answers on them in your pocket. Free to download for iPhone, iPad and Android.

Download on the

App Store

Get it on

Google Play

About RadioAnato AI

Comparison at a glance

How to study physiology with apps

• Draw before you watch. Sketch the graph (a pressure–volume loop, the oxygen–haemoglobin curve) from memory, then check.
• Ask “what happens if…”. Change one variable and predict every consequence.
• Anchor each mechanism to a structure, for example the heart muscle whose contraction the cardiac cycle describes.

Pair the apps with a good book from the best physiology textbooks and try a simulator from the best physiology simulators and virtual labs.

Frequently asked questions

DecodeMed and its app, RadioAnato AI, are our own product, so weigh what we say about them accordingly. We have no affiliate or commercial relationship with the other tools listed.