Comparison

StepX vs Grey

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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!

About

Grey

This platform helps medical students study efficiently with organized question banks and an intuitive interface. It offers theoretical and practical learning, smart exam modes, and detailed explanations to prepare students for exams. Track your progress and personalize your study experience for confident exam preparation.

Highlights
  • Comprehensive medical question banks
  • Theoretical and practical learning
  • Smart exam modes
  • Detailed explanations
  • Performance analytics
  • Personalized study experience
  • Cloud synchronization
Features
Read full description

Grey Matter is a modern medical education platform designed to help medical students study smarter, practice effectively, and prepare confidently for exams. The app combines organized theoretical and practical question banks with an intuitive learning experience, allowing students to review, practice, and monitor their progress in one place. Features include: • Comprehensive medical question banks • Theoretical and practical learning • Smart exam modes • Detailed explanations • Performance analytics and progress tracking • Bookmark important questions • Personalized study experience • Fast and intuitive interface • Secure cloud synchronization • Regular content updates Grey Matter is developed to support medical education with a clean, reliable, and efficient learning environment for students and healthcare learners.

Screenshots

StepX3 screens
Grey4 screens

Verdict

The call

StepX and Grey are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for StepX against 5.0 for Grey. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

StepX ships an update every 6 weeks, Grey every 5 weeks. Both last shipped on October 31, 2026.

ScorecardNo meaningful differences
StepX versus Grey: the parameters behind the verdict, then further details
ParameterStepXGrey
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Number of ratings12 — better
Update frequencyEvery 6 weeksEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size7 MB98 MB
Age rating17+4+
DeveloperZaid AlghurabiSaifuldeen Al-Bajjari

Customer experience

StepX

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Grey

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

StepX

No in-app purchases

None

Grey

No in-app purchases

Questions

Is StepX free?
StepX is free to download, with no in-app purchases.
Is Grey free?
Grey is free to download, with no in-app purchases.
Which has better reviews, StepX or Grey?
StepX and Grey are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do StepX or Grey have ads?
Neither StepX nor Grey shows ads.
Which is updated more often, StepX or Grey?
StepX ships an update every 6 weeks, and Grey every 5 weeks. Most recently, StepX was updated on October 31, 2026 and Grey on October 31, 2026.

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