StepX vs 99's Guide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StepX
Prepare for medical licensing exams with a comprehensive platform offering realistic practice tests, in-depth explanations, and a searchable medical library. Build custom quizzes, track progress with detailed analytics, and access expert-led video lectures. Study offline and connect with mentors for personalized guidance.
- Dynamic QBank & Custom Quiz Builder
- Realistic Exam Interface
- In-Depth Explanations
- Comprehensive Medical Library
- Video Lecture Library
- Self-Assessments & NBME-Style Exams
- Personalized Analytics & Performance Tracking
- Offline Mode
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Struggling to master the massive volume of information for your medical licensing exams? Welcome to StepX—the ultimate medical exam preparation platform designed to make your USMLE journey smooth, structured, and successful. Whether you are gearing up for USMLE Step 1, Step 2 CK, or Step 3, StepX is engineered to give you the clinical reasoning skills, high-yield knowledge, and exam confidence needed to excel. StepX combines a highly realistic exam environment with extensive study resources, giving you the feel of the actual test day while providing all the tools to patch your knowledge gaps. KEY FEATURES Dynamic QBank & Custom Quiz Builder: Create personalized practice sessions tailored to your study goals. Filter questions by subject, organ system, difficulty, and question status (unused, incorrect, marked). Realistic Exam Interface: Practice in a simulated testing environment modeled after the actual USMLE interface. Get comfortable with the layout, keyboard shortcuts, and timing before exam day. In-Depth Explanations & High-Yield Insights: Every question comes with a comprehensive breakdown explaining not only why the correct option is right, but also why the incorrect options are wrong. Learn core concepts, diagnostic algorithms, and clinical pearls. Comprehensive Medical Library: Access an on-demand, searchable reference library filled with high-yield medical summaries, articles, and clinical guidelines. Perfect for quick reviews during quiz review sessions. Rich Video Lecture Library: Solidify complex pathophysiological and clinical concepts with high-yield, engaging video tutorials taught by medical experts. Self-Assessments & NBME-Style Exams: Test your overall readiness with full-length assessments. Track your predicted scores and monitor your baseline performance over time. Personalized Analytics & Performance Tracking: Identify your weak areas with detailed performance reports. Monitor your progress by topic, speed, and accuracy, helping you focus your study hours where they matter most. Offline Mode / Study On-The-Go: Going off-grid? Download question blocks, medical articles, and lectures directly to your device so you can study anytime, anywhere—no internet connection required. Mentorship Support: Connect directly with experienced medical mentors who have aced their exams. Get tailored study schedules, exam-taking tips, and guidance to maximize your score. WHO IS STEPX FOR? StepX is built specifically for: Medical Students preparing for USMLE Step 1, Step 2 CK, or Step 3. International Medical Graduates (IMGs) seeking a structured, high-yield prep tool. Healthcare Professionals looking to refresh clinical concepts and board-relevant material. WHY STEPX? Medical school is hard enough; preparing for your licensing exams shouldn't be. StepX decodes complex clinical scenarios into manageable, learnable components. With our intuitive user interface, offline study capabilities, and active student support community, StepX is the most efficient and user-friendly prep companion available. Download StepX today and take the first step towards acing your USMLE exams!
99's Guide
A medical study companion for University of Baghdad College of Medicine students. Access study materials, subject resources, and tests in an organized and efficient way to support your academic journey.
- Medical study materials
- Subject resources
- Tests
- Student information
- Organized interface
- Efficient studying
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99’s Guide is a dedicated medical study companion designed for students of the College of Medicine, University of Baghdad. Everything you need for your academic journey, thoughtfully organized in one place. Access your study materials, subject resources, tests, and student information through a simple and organized experience. Designed to make studying more accessible, structured, and efficient — so you can focus on what truly matters: your medical journey. Developed by Mustafa Yasir & Mustafa Samad
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Verdict
The clearest difference is ratings volume: 99's Guide at 3 against StepX's 1. On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for StepX against 5.0 for 99's Guide. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
| Parameter | StepX | 99's Guide |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Number of ratings | 1 | 3 — better |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 10 MB | 17 MB |
| Age rating | 17+ | 12+ |
| Developer | Zaid Alghurabi | MUSTAFA SAMAD |
Customer experience
StepX
99's Guide
In-app purchases
StepX
No in-app purchases
99's Guide
No in-app purchases







