# USMLE Step 1 Mastery

> Medical Licensure Exam Prep

Canonical page: [https://chrome-stats.com/d/id964613157](https://chrome-stats.com/d/id964613157)

## Overview

- **ID:** `id964613157`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Higher Learning Technologies
- **Category:** Medical
- **Rating:** 4.60 / 5 (216 ratings)
- **Version:** 8.6.5966
- **Last updated:** 2019-09-13
- **First published:** 2015-05-06
- **Size:** 166 MB
- **Data as of:** 2026-09-04
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/usmle-step-1-mastery/id964613157)
- **Website:** [http://builtbyhlt.com](http://builtbyhlt.com/)
- **Privacy policy:** [http://builtbyhlt.com/Privacy](http://builtbyhlt.com/Privacy)

## Description

USMLE Step 1 Mastery is a comprehensive medical licensure exam prep app with 1,800+ items, including 750+ vignette-style questions with explanations, 28+ hours of audio/video content (heart/lung sounds and high-yield lectures), and 1,100+ basic science questions with explanations.

It also features 250+ mnemonics, 500+ definitions, 60+ generic drug flashcards, and in-depth performance statistics to track your progress. Subscriptions offer auto-renewing access: 1 month for $14.99 or 12 months for $59.99. Pass USMLE Step 1 guaranteed, or your money back (as advertised).

## Rankings

- #101,496 — Overall

## Review summary

USMLE Step 1 Mastery is praised for thorough explanations, portability, and broad topic coverage, plus useful study features, making it a strong prep tool. However, users report billing/renewal problems and some content quality concerns that can mislead or frustrate. A few also wish for more questions and features like note-taking.

### Pros

- Detailed explanations and rationale for questions.
- Convenient on-the-go study with quick review opportunities.
- Broad, in-depth coverage across Step 1 topics.
- Helpful features like rating answers, feedback, and note cards/mnemonics.
- Widely regarded as a strong USMLE Step 1 prep resource.

### Cons

- Billing and renewal problems, including charges without sign-up and access lockouts.
- Content quality issues and occasional incorrect information.

## Similar extensions and apps

- [USMLE Step 2 Mastery](https://chrome-stats.com/d/id1175026778) — 4.40 / 5
- [USMLE Step 1 Medical Prep](https://chrome-stats.com/d/id6782512433)
- [USMLE Mastery Step 1 Exam Prep](https://chrome-stats.com/d/id6742191606) — 5.00 / 5
- [USMLE Mastery](https://chrome-stats.com/d/id6635993731) — 5.00 / 5
- [USMLE Step 2 CK Medical Prep](https://chrome-stats.com/d/id6782512355)
- [My Medical Mastery Exam Prep](https://chrome-stats.com/d/id1485752702) — 5.00 / 5
- [USMLE Prep Test : Step 1,2,3](https://chrome-stats.com/d/id6755509966)
- [USMLE Exam Prep Practice 2026](https://chrome-stats.com/d/id6746070640) — 5.00 / 5
- [USMLE Exam Practice](https://chrome-stats.com/d/id6748877169) — 3.00 / 5
- [USMLE Step 2 Test Preparation](https://chrome-stats.com/d/id1463390479)
- [USMLE Exam Review 6000 Quiz](https://chrome-stats.com/d/id1060698659)
- [USMLE Step 1 Exam Expert](https://chrome-stats.com/d/id1517184746) — 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id964613157)