# PathoPlay: Pathophysiology — Ace Disease & Drug Mechanisms > Interactive medical app for learning disease and drug mechanisms. (iPhone/iPad app by Helena Kaso.) - Source: https://appshunter.io/ios/app/pathoplay-pathophysiology/id6761776544 (this page in markdown: same URL + `.md`) - Developer: [Helena Kaso](https://appshunter.io/developer/1856743234) - Category: Medical, Education - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 17+ - Requires: iOS 15.1 · 58 MB - Languages: English - Released: 2026-04-09 - Data updated: 2026-07-22 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/pathoplay-pathophysiology/id6761776544/reviews.md ## What is PathoPlay? PathoPlay teaches pathophysiology and pharmacology by mechanism, not memorization. Trace how diseases start, how drugs treat them, and how the same molecular cascades recur across organ systems. Can you connect the chain? Portal hypertension → splanchnic capillary pressure → fluid transudation → ascites. Every link matters. Miss one, and the pathway breaks. Now treat it. Five drugs in your cart. Only one hits the right molecular target. Choose wrong, the cascade continues. Now sabotage it. A healthy cascade. Five insults: pathogens, toxins, autoantibodies, stressors. Only one disrupts the pathway at the right node. Drop it correctly, and watch the disease unfold step by step. FIVE MODES Chain — Drag and connect steps from trigger to clinical outcome. Reverse — Start with a clinical finding and trace backward to the root cause. How attendings think. Versus — Two similar diseases side by side. Fill in the gaps that distinguish them. Treat — Drag the correct drug onto the right molecular target to block the cascade. Pharmacology by mechanism. Sabotage — Drop the right pathogen, toxin, or autoantibody onto the node it disrupts. Watch the cascade fail in real time. PLUS Mechanisms — Study horizontally instead of by body system. 28 immunopathology, toxin, and hemodynamic clusters span every mode. Daily Challenge — One new chain every day. Build your streak in under 3 minutes. 650 PUZZLES ACROSS 10 BODY SYSTEMS Cardiovascular, Respiratory, Renal, GI & Hepatology, Neurology, Endocrine, Infectious Disease, Hematology, Reproductive, Rheumatology — pathophysiology, pharmacology, and mechanism-disruption in every system. Sabotage highlights: H. pylori, HBV cccDNA, C. difficile, doxorubicin cardiotoxicity, anti-PLA2R membranous, falciparum malaria, prion disease, MS, Hashimoto, Graves, TTP, HIT, APS, HPV cervical cancer, drug-induced lupus, statin myopathy. WHO IT'S FOR Medical students preparing for USMLE Step 1 and Step 2 CK. Nursing students mastering mechanisms for NCLEX. PA, NP, and pharmacy students building clinical reasoning foundations. Anyone who wants to understand why diseases happen and how drugs work. WHY IT WORKS Most study tools ask you to recall facts. PathoPlay asks you to think with mechanism as the unit of reasoning. Five different ways to engage the same molecular reality builds understanding that survives exam pressure and translates to clinical practice. Every puzzle ends with a clinical pearl referenced to standard medical textbooks. From the makers of MedDiagnosis (clinical case simulator) and Kinetics (USMLE biochemistry). ACCESS 200 chains free across all 10 body systems One-time purchase unlocks all four premium modes, the Mechanisms browse, and all future content, yours forever No subscriptions, no ads, fully offline Evidence-based content referenced to Robbins & Cotran, Harrison's, Guyton & Hall, Goodman & Gilman's, Pathoma, Nat Rev Dis Primers, NEJM, and Lancet. Support: contact@diagnosticstudios.com Educational use only. Not for clinical decision-making. USMLE® is a trademark of NBME/FSMB. No affiliation or endorsement. ## Key features - Mechanism-based learning - Interactive puzzles - Disease and drug tracing - Daily challenges - Offline access - 10 body systems covered ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | PathoPlay Premium | $12.99 | one-time | ## Frequently asked questions about PathoPlay ### What is PathoPlay? PathoPlay is an educational app designed to teach pathophysiology and pharmacology by focusing on molecular mechanisms rather than rote memorization. It uses interactive puzzles to help users understand how diseases start, how drugs work, and how these processes occur across different organ systems. ### What are the different modes in PathoPlay? PathoPlay offers five distinct modes: Chain (connect steps from trigger to outcome), Reverse (trace backward from clinical finding to root cause), Versus (compare two similar diseases), Treat (select the correct drug for a molecular target), and Sabotage (identify the disruption in a healthy cascade). ### How much does PathoPlay cost? The app offers 200 free puzzles across all 10 body systems. A one-time purchase unlocks all premium modes, the Mechanisms browse feature, and all future content permanently. There are no subscriptions or ads. ### Is PathoPlay available offline? Yes, PathoPlay is fully offline, meaning you do not need an internet connection to use its features or access its content after downloading. ### What medical content does PathoPlay cover? PathoPlay covers 650 puzzles across 10 body systems, including Cardiovascular, Respiratory, Renal, GI & Hepatology, Neurology, Endocrine, Infectious Disease, Hematology, Reproductive, and Rheumatology. It delves into pathophysiology, pharmacology, and mechanism-disruption. ### What is the age rating for PathoPlay? PathoPlay has an age rating of 17+, indicating it is intended for mature audiences due to the complexity of the medical subject matter. ### How often is PathoPlay updated? The app was last updated on April 30, 2026, with version 2.0.1. Future content is promised to be included with the one-time purchase. ### What devices support PathoPlay? PathoPlay is supported on iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users. ## Version history (last 3 releases) ### 2.0.1 — 2026-04-30 Introducing Sabotage Mode: disrupt 100 healthy pathways with the right pathogen, toxin, or autoimmune trigger. Plus: cross-mode Mechanisms browse, related-puzzle links, and a faster results screen. ### 1.1.0 — 2026-04-10 NEW: Treat Mode - 100 pharmacology puzzles. A disease pathway is active. Pick the right drug. Block the right target. Learn pharmacology by mechanism, not memorization. ### 1.0 — 2026-04-09 No release notes. ## More apps by Helena Kaso - [MedDiagnosis Medical Simulator](https://appshunter.io/ios/app/meddiagnosis-medical-simulator/id6755857252) - [Kinetics: USMLE Nutrition Prep](https://appshunter.io/ios/app/kinetics-usmle-nutrition-prep/id6763088313) - [Clinical Pharmacology Cases](https://appshunter.io/ios/app/clinical-pharmacology-cases/id6768678498) All apps by Helena Kaso: https://appshunter.io/developer/1856743234 ## Related topics [pathoplay pathophysiology game](https://appshunter.io/ios/topics/pathoplay-pathophysiology-game) · [helena kaso](https://appshunter.io/ios/topics/helena-kaso) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-22.*