# Pharmacology Exam & Board Prep > Katzung & Trevor USMLE Review Canonical page: [https://chrome-stats.com/d/id398908551](https://chrome-stats.com/d/id398908551) ## Overview - **ID:** `id398908551` - **Platform:** Apple - **Type:** Apple app - **Status:** Available - **Publisher:** Higher Learning Technologies - **Category:** Medical - **Rating:** 4.20 / 5 (40 ratings) - **Version:** 6.8.4625 - **Last updated:** 2018-12-21 - **First published:** 2010-11-09 - **Size:** 127 MB - **Data as of:** 2026-09-03 - **Store listing:** [Apple App Store](https://apps.apple.com/us/app/pharmacology-exam-board-prep/id398908551) - **Website:** [http://builtbyhlt.com](http://builtbyhlt.com/) - **Privacy policy:** [http://builtbyhlt.com/privacy](http://builtbyhlt.com/privacy) ## Description Studying for medical pharmacology course exams or the USMLE? Make sure that this comprehensive and innovative study tool is in your arsenal. Derived from the highly respected “Katzung and Trevor's Pharmacology Examination and Board Review”, Pharmacology Exam and Board Review has the broadest scope of anything on the market today. Install the free version today and jump-start your studying! We have provided a limited free version of the app that you can try before deciding to upgrade. This version includes a limited amount of practice questions and basic progress metrics. Subscribe today and get access to: • 600+ practice questions • Detailed explanations with images • Developed by experts • 400+ high yield terms • 200+ must-know drugs • 200+ tough quiz questions • Dozens of test taking tips and strategies • Unlimited access to ALL categories: • Toxicology, Cardiovascular Drugs • Autonomic Drugs, Endocrine Drugs • Chemotherapeutic Drugs and more! • Detailed results tracking With information specific to the USMLE as well as generic test prep advice, you are about to download an indispensable tool for any medical pharmacology student preparing for one of the most important tests of your life. About the Authors: Anthony J. Trevor, PhD Professor Emeritus of Pharmacology and Toxicology Department of Cellular and Molecular Pharmacology University of California, San Francisco San Francisco, CA Bertram G. Katzung, MD, PhD Professor Emeritus of Pharmacology Department of Cellular and Molecular Pharmacology University of California, San Francisco San Francisco, CA Susan B. Masters, PhD Associate Professor of Pharmacology Department of Cellular and Molecular Pharmacology University of California, San Francisco San Francisco, CA Get access to all questions when you subscribe: • 1 Month: one auto-renewing payment of $14.99 • 12 Months: one auto-renewing payment of $59.99 This app offers two auto-renewing subscription options to help you pass your exam. -Payment will be charged to iTunes Account at confirmation of purchase -Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period -Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal -Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase -Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable These prices are for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. Our Customer Success Team is available from 9am to 5pm, Monday - Friday (except on major holidays). Call us at 319-246-5271 and email us at support@hltcorp.com with any questions. Privacy Policy - http://builtbyhlt.com/privacy Terms of Conditions - http://builtbyhlt.com/EULA ## Rankings - #196,673 — Overall ## Review summary Overall, the app offers generally decent questions useful for memorization and board prep. However, reviewers repeatedly report subscription unlock failures, major bugs that prevent card progression, mis-keyed questions, and contradictory explanations. It lacks essential organization features (no search, no topic filtering, random ordering, no easy review of past questions) and is priced high for what it offers. While repetition is beneficial, most reviews question the app’s reliability and value. ### Pros - Question quality is generally good. - Effective for repetition to memorize drugs. - Useful supplement for pharmacology board prep. ### Cons - Subscription unlock failures after purchase and lack of support contact. - Major bugs prevent card progression and progress saving. - Poor organization with no search or topic filtering and random question order. - Miss-keyed questions and contradictory explanations. - High price for limited features; needs more content and enhancements. ## Similar extensions and apps - [Pharmacology: USMLE & NAPLEX](https://chrome-stats.com/d/id880095147) — 4.40 / 5 - [Pharmacology Exam Prep 2021](https://chrome-stats.com/d/id1525511006) — 5.00 / 5 - [Pharmacology Exam Prep.](https://chrome-stats.com/d/id6745889260) — 4.90 / 5 - [Pharmacology Quiz Master](https://chrome-stats.com/d/id6741197956) - [Pharmacology Exam Review Q&A](https://chrome-stats.com/d/id1112561480) - [Pharmacology Exam 2026 Prep](https://chrome-stats.com/d/id6779577542) - [Pharmacology Exam & Board Quiz](https://chrome-stats.com/d/id6738123315) - [Pharmacology & Pharmacy Prep](https://chrome-stats.com/d/id6757822004) — 3.00 / 5 - [Pharmacology for NCLEX 8000 Qz](https://chrome-stats.com/d/id1060697264) - [Cardiology Pharmacology Review](https://chrome-stats.com/d/id1225093559) - [Pharma Brain: Exam Ready](https://chrome-stats.com/d/id6740146102) - [Pharmacology Quiz for Students](https://chrome-stats.com/d/id6761301174) --- Source: [Chrome-Stats](https://chrome-stats.com/d/id398908551)