Comparison

USMLE Step2 vs Quantum Cats Dance

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

Head to head
About

USMLE Step2

Features
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USMLE Step2- Exam Prep App for Self Learning 2017 With this app you can learn on the Go, Anytime & Everywhere. The learning & understanding process never been so easy like with our 5 study modes embedded in this app. This app is a combination of sets, containing practice questions, study cards, terms & concepts for self learning & exam preparation on the topic of USMLE Step2. USMLE Step 2 is designed to assess whether medical school students or graduates can apply medical knowledge, skills and understanding of clinical science essential for provision of patient care under supervision. US medical students typically take Step 2 during the fourth year of medical school. Step 2 is further divided into two separate exams: Step 2 CK and Step 2 CS. Our Learners get the best, that's why they don't just meet standards, They exceed them. Remember that you should get the Skills you need to land the job you want. Invest in your Success Now. Your investment in knowledge, professionalism & expertise is durable & with a High value added. It's a High return investment. This app is also suitable for students, researchers, resident, doctors, Anatomy & physiology specialists, nurses and medical professionals and of course Medical lecturers, teachers and professors. Get a better score in your USMLE (step1, step2 CS & CK), PANCE, MCAT, DAT, COMLEX,CNA, OAT, NBDE, or PCAT exam, and the most important is to fall in love with the material, it worth all the attention. National League for Nursing Pre-Admission Exam (NLN PAX-RN/PN) Test of Essential Academic Skills (TEAS) Health Occupations Basic Entrance Test (HOBET) This educational & medical application is intended to NP, CNA, PAX, RN, and also for: ANP - Adult Nurse Practitioner FNP - Family Nurse Practitioner A-GNP - Adult-Gero Primary Nurse Practitioner ANP-BC Adult Nurse Practitioner FNP-BC Family Nurse Practitioner PNP-BC Pediatric Nurse Practitioner ACNP-BC Acute Care Nurse Practitioner GNP - BC Gerontological Nurse Practitioner PMHNP-BC Adult Psychiatric and Mental Health Nurse Practitioner PMHNP-BC Family Psychiatric and Mental Health Nurse Practitioner CNRN® SCRN® and also for COMLEX, ANCC Certification Center, TEAS, HESI A2, NET, DET, PSB/HOAE, PAX-RN, HOBET, PAX RN, PSB. Hestotechnician, phlebotomist, CDM, Hospice and Palliative, Medical Surgical. -The Content & design of this application is developed by Teachers & students to satisfy the exact candidates needs -We keep the application as simple as possible to let the learner focus only on the content -The Flashcards are exam oriented and designed to enhance quick memorization -The application is designed to let you gain time and efficiency -The Flashcards wording enhances easy understanding to ensure higher exam score. In this application you will get over 50 Exam sets. This App energized your creativity, showcases your talents and strength your self-confidence during the exam & daily work. You will get better understanding, less preparation time & a better score in the exam. Main Features: - Works perfectly Offline - Dedicated Exam questions and study notes - 5 study modes - Shareable content - Settings: with flexibility to change font size & background control. This application allows you to expand your knowledge, widen your expertise, improve your practice skills, Broaden your academic & career horizons. Disclaimer 1: This application is not dedicated for a specific professional certification, it's just a tool to assist students & professionals to expand their knowledge & in-depth their expertise. Disclaimer 2: The publisher of this iOS application, is not affiliated with or endorsed by any testing organization. All organizational and test names are trademarks of their respective owners. The content of the application might include inaccuracies or typographical errors, for which the owner can not be held liable.

About

Quantum Cats Dance

Features
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Quantum Cats Dance Explore molecules. Feel quantum behavior. Learn by building. Quantum Cats Dance is an interactive molecular playground that lets you build simple molecules and explore their quantum-inspired properties visually and intuitively. By placing atoms, forming bonds, and adjusting structures, you can observe how molecular configuration affects properties such as energy gap, stability, orbital distribution, and electronic behavior — all in a clean, touch-friendly interface designed for curiosity-driven learning. This app is designed for students, educators, and curious minds who want to develop intuition about molecular and electronic structure without heavy equations or specialized software. Build Molecules by Touch Add atoms such as Hydrogen, Carbon, Oxygen, Nitrogen, and Sulfur Tap to create bonds, drag to reposition, and freely explore structures Instantly see how bonding changes molecular behavior No prior chemistry or physics knowledge required. Visualize Quantum-Inspired Properties Quantum Cats Dance provides qualitative visualizations of key concepts commonly used in molecular science: Energy Gap (HOMO–LUMO gap) Stability indicator (relative, heuristic-based) Orbital Visualization (qualitative) Total Energy trend Bond Support & electronic consistency checks These values are intended to support learning and intuition, not professional-grade simulation. Learn Through Interaction Instead of static diagrams or formulas, Quantum Cats Dance encourages learning by experimentation: Why does a bond stabilize a molecule? How does geometry influence electronic behavior? What happens when bonds compete or coordination becomes excessive? The app provides contextual hints and warnings to guide exploration when structures become electronically unstable. Designed for Education & Exploration Quantum Cats Dance is ideal for: Students exploring chemistry or physics concepts Educators demonstrating molecular intuition visually Hobbyists and makers curious about quantum-inspired models Anyone who enjoys experimenting and discovering patterns The app focuses on conceptual clarity, not numerical precision. Important Notes This app does not perform ab initio quantum chemistry calculations Results are heuristic and qualitative, intended for educational use Not suitable for research, medical, or industrial decision-making Evolving with You Quantum Cats Dance is actively evolving. Future versions may include: Expanded element sets Enhanced visualizations Learning scenarios and guided challenges Optional cloud-assisted calculations Your curiosity helps shape the future of the app. Why “Quantum Cats”? Because learning complex ideas should feel playful, intuitive, and a little curious — just like a cat exploring the unknown. Build. Observe. Experiment. Dance with quantum intuition.

Screenshots

USMLE Step24 screens
Quantum Cats Dance4 screens

Verdict

The call

The clearest difference is price: Quantum Cats Dance at Free against USMLE Step2's $3.99. Quantum Cats Dance also leads on update cadence (daily vs every 87 months). USMLE Step2's advantage is device support (3 vs 1) and iOS requirement (12.4 vs 18.2). On 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

CostPrice · In-app purchases · Ads · Monetization

Quantum Cats Dance is free to download; USMLE Step2 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

USMLE Step2 ships an update every 87 months, Quantum Cats Dance daily. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 2 level
USMLE Step2 versus Quantum Cats Dance: the parameters behind the verdict, then further details
ParameterUSMLE Step2Quantum Cats Dance
Price$3.99Free — better
Update frequencyEvery 87 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.4 — better18.2
Further details — not scored
Size12 MB4 MB
Age rating12+4+
DeveloperTourkia CHIHIEiki Sato

In-app purchases

None

USMLE Step2

No in-app purchases

None

Quantum Cats Dance

No in-app purchases

Questions

Is USMLE Step2 free?
USMLE Step2 costs $3.99, with no in-app purchases.
Is Quantum Cats Dance free?
Quantum Cats Dance is free to download, with no in-app purchases.
Do USMLE Step2 or Quantum Cats Dance have ads?
Neither USMLE Step2 nor Quantum Cats Dance shows ads.
Which is updated more often, USMLE Step2 or Quantum Cats Dance?
USMLE Step2 ships an update every 87 months, and Quantum Cats Dance daily. Most recently, USMLE Step2 was updated on October 15, 2026 and Quantum Cats Dance on October 16, 2026.

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