Atom Worldbox vs MCAT Prep 2026

The entire periodic table is yours to play with. Drop atoms onto the screen, watch them bond into real molecules, and trigger genuine chemical reactions all driven by real science, not scripted animations. Atom Worldbox is an open-ended chemistry and physics sandbox. There are no levels, no goals, and no rules just a living world of atoms governed by the same forces that shape the real universe. Bring two elements together and see whether they bond. Build a known molecule and the app recognizes it instantly. Push reactive elements together and watch reactions ignite, transform, and settle on their own. WHAT YOU CAN DO • Experiment with every element on the periodic table • Watch atoms form covalent, ionic, and metallic bonds based on real chemistry • Build molecules and see them automatically identified • Trigger authentic chemical reactions and watch them unfold naturally • Turn on Thermal Mode: heat and cool your world — condense gases into droplets, boil them, or fuse hydrogen at star-core temperatures • Explore radioactivity, isotopes, and natural decay • Set off chain reactions and watch them cascade across your world • Zoom, pan, and arrange everything with simple, intuitive touch controls REAL SCIENCE, NOT SPECIAL EFFECTS Every bond and reaction is calculated from real chemical and physical principles. Atoms attract and repel, electrons transfer, and molecules come together exactly the way they would in nature. It's a living simulation you can build, break, and rebuild as many times as you like. GREAT FOR • Curious minds who love to experiment and explore • Students discovering chemistry and physics • Teachers looking for an interactive way to show bonding and reactions • Anyone who loves satisfying, science-driven simulations Works fully offline. No account required, no clutter—just open it and start building. Atom Worldbox is free to explore. Upgrade to Pro to unlock the complete sandbox experience.

MCAT Prep 2026: Full Test is a complete offline MCAT question bank and practice test app for pre-med students, with 2,008 original questions and 142 original passages written for this app across all four sections. PAID APP - PURCHASE REQUIRED This app has no free tier and no free trial. A subscription or a one-time Lifetime purchase is required to access the question bank and every study feature. Details and prices are shown below and inside the app before you buy. FULL LENGTH PRACTICE TEST Sit a complete 230-question mock exam across all four sections at the real timings: Chemical and Physical Foundations (59 questions, 95 minutes), Critical Analysis and Reasoning Skills (53 questions, 90 minutes), Biological and Biochemical Foundations (59 questions, 95 minutes) and Psychological, Social and Biological Foundations (59 questions, 95 minutes). Finish and get an estimated 472-528 scaled score with a per-section 118-132 breakdown. PASSAGE-BASED PRACTICE, LIKE THE REAL EXAM Practice on original science passages built around experiments, figures and data, plus original humanities and social science CARS passages. On iPad the passage sits beside the question, as on test day. EVERY WAY YOU WANT TO STUDY - Timed section practice at real test length - Passage mode with immediate worked explanations - Practice by AAMC content category - all 34 categories, one at a time - Quick practice: 10 mixed questions in a spare moment - Weak-area drills built from your own results - Review incorrect answers and bookmarked questions BIOCHEM, ORGO, PHYSICS, PSYCH AND SOC FLASHCARDS 135 spaced-repetition flashcards covering all 20 amino acids, physics and chemistry formulas, biochemistry essentials and psych/soc terms, scheduled so cards you keep missing return sooner. TRACK YOUR SCORE, NOT JUST YOUR HOURS A progress dashboard with a projected 472-528 total, per-section mastery, a full-length score trend, weak content categories, a test-day countdown and a daily streak. Set a target score, a test date and a daily goal in onboarding, and take an 8-question diagnostic to find your starting line. BUILT FOR HOW YOU ACTUALLY STUDY - 100% offline: every question, passage and explanation is bundled in the app - No account and no sign-in - No ads, no analytics SDKs, no third-party trackers, nothing collected - Full VoiceOver, Dynamic Type, light and dark mode support - Designed for both iPhone and iPad ORIGINAL CONTENT Every question, passage, answer key and explanation was written originally for this app. Nothing is reproduced from official practice material or any other preparation product. References consulted while checking the science are listed inside the app. PRICING - Monthly Full Access: $14.99 per month, auto-renewing - Annual Full Access: $49.99 per year (about $4.17 per month), auto-renewing - Lifetime Full Access: $79.99, one-time purchase, does not renew Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically for the same period at the same price unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours prior to the end of the current period. Manage or cancel any time in your Apple Account settings. Prices shown are United States prices and may vary by region. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://joykhansayan1.github.io/mcat-prep-2026-full-test-legal/privacy.html DISCLAIMER MCAT is a program of the Association of American Medical Colleges (AAMC) and is a registered trademark of the AAMC. This app is an independent, unofficial study aid and is not affiliated with, authorised, endorsed by or sponsored by the AAMC or any medical school or testing organisation. Scaled score estimates are indicative practice feedback, not official scores. Content is educational material for exam preparation and is not medical advice.