Periodic Table: Chemistry 3D

Explore the periodic table, balance chemical equations, inspect 3D molecules, and use 29 chemistry tools—all on device.

Chemistry Explorer brings an interactive periodic table, 2D/3D molecules, an equation balancer, and 29 chemistry tools into one focused app for students, teachers, and curious minds.

PERIODIC TABLE, PERFECTED • All 118 elements in a clean, color-coded layout • Tap any element for properties, isotopes, spectra, and real-world uses • Instant search by name, symbol, or atomic number

MOLECULES IN 2D & 3D • Enter any valid SMILES to generate a structure with RDKit • Search the curated catalog by molecule name or formula • Calculate molecular weight, logP, TPSA, and more on device • Rotate and explore structures in interactive 3D

OFFLINE MOLECULE DATABASE • Search 500 source-ranked compounds for free • Chemistry Pro unlocks all 8,000 included compounds • On iOS 26.4 or later, Pro can download the complete 467,735-compound library through Apple

29 TOOLS FOR CHEMISTRY, 25 OF THEM FREE • Balance equations; calculate molar mass and stoichiometry; explore pH/pOH, buffers, gas laws, kinetics, equilibrium, solutions, and more

DESIGNED FOR FOCUS • Chemistry calculations and molecular processing run on device; no account required • English, Français, 简体中文, 繁體中文, 日本語, Español, Deutsch, Português, 한국어, Русский, and Tiếng Việt • Optimized for iPhone and iPad

Twenty-five of the twenty-nine tools are free, the reaction predictor and every reference table among them, plus two SMILES builds a day and 500 offline compounds. Chemistry Pro is available as monthly, yearly, or lifetime access and unlocks the other four tools — buffers, equilibrium, reaction rate, and Arrhenius — along with unlimited SMILES builds and all 8,000 bundled compounds. Paid users of the original app keep Legacy Pro.

Daily free advanced-tool choices: 1. Reopening a chosen tool that day is unlimited. Usage and crash reporting are on by default. You can turn them off in Settings. No advertising ID is collected.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/