MolLab vs CodeCub

MolLab is a hands-on 3D chemistry lab for iPad and Mac. Explore the building blocks of matter — from whole molecules down to atoms, the nucleus, and even quarks — all in interactive 3D you can rotate, zoom, and take apart. WHAT YOU CAN DO • Periodic Table — Browse all 118 elements. Tap any element to see its atom in 3D with electron shells. • Molecule Viewer — Look up molecules by name or formula from a curated 3D library, or search millions of compounds live via PubChem. • Build Mode — Snap atoms together lego-style to create your own molecules. Auto-detect the formula, align with VSEPR geometry, and run a simple energy minimization. • Proteins & DNA — Load real structures from the Protein Data Bank (PDB) as rainbow ribbon models. Zoom in to switch from ribbon to full all-atom detail. • Multiscale Zoom — Keep zooming: molecule → atom → nucleus → quarks. See the standard model of particles come to life. • Atom Models — Switch between the simple Bohr model and probability orbital clouds (s, p, d subshells). • Quiz Mode — Test yourself: identify molecules from their 3D shape. • Measure & Export — Measure bond lengths and angles. Export your work as PNG, GIF, MP4, or structure files (XYZ, MOL, PDB). • AR (iPhone & iPad) — Place molecules in your room in augmented reality. DESIGNED FOR LEARNING MolLab is built for students, teachers, and the curious — not for research. Clean, simple, and fully native on iPad and Mac. Available in English and Korean. Free to use. Data sources: PubChem (NIH) and the RCSB Protein Data Bank.

CodeCub teaches you Python in tiny, deterministic lessons — then makes sure you actually remember it. WHAT IT DOES • Bite-size Python: 54 hand-written lessons across 10 tracks, each just a few minutes long. • Real, instant checks: predict the output, fill the blank, order the lines, or pick the answer — graded on-device, deterministically. No AI guessing, no running your code. • Spaced repetition that works: a true SM-2 scheduler brings each concept back exactly when you're about to forget it, so it sticks for good. • A real path: lessons unlock in order as you master their prerequisites, from print() all the way to classes and regex. • Streaks, XP and a daily review reminder to keep the habit going. FREE BY DESIGN The full foundation course — Python Basics, Strings and Control Flow (21 lessons) — is free forever. No forced trial, no account, no card required. Your progress lives on your device. CODECUB PRO CodeCub Pro is an optional auto-renewing subscription that unlocks the 6 advanced tracks — Data, Functions, Comprehensions, Errors, Files & Modules, Classes and Regex (33 more lessons), all with the same spaced-repetition review. Subscription: auto-renews unless canceled ≥24h before the period ends; payment charged to your Apple ID at confirmation; manage/cancel in App Store settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://codecublab.com/privacy