Chemistry · for iOS

The invisible world, lit from within.

A darkroom for chemistry — 118 elements, 352 molecules, 25 lab instruments, all on-device.

  • 118 Elements
  • 352 Molecules
  • 25 Lab
  • 100% on-device
Chemistry Explorer is drawn dark by design — a darkroom for the invisible world.

the deep dive

Five universes · one app

Not a reference book. A studio.

Every screen is built to be touched — atoms you can rotate, beakers that fill, spectra you can scrub. Chemistry, made luminous.

the daily ritual

Today

One molecule and one element, alive on arrival. A rotating specimen every day.

Today
the whole periodic table

Elements

118 elements with a live trend lens. Pinch-zoom from icon grid to data card; eight recolor lenses from electronegativity to density.

Elements
a specimen gallery

Molecules

352 molecules as liquid-glass specimen plates. 2D explorable structures, view-in-3D, AR Quick Look, and a Chemical Space star map.

Molecules
a lab in your pocket

Lab

25 living calculators arranged as instruments — beakers that fill, particle boxes that respond, a pH spectrum you can scrub.

Lab
one field, everything

Search

Elements, molecules, formulas, and tools in one iOS-native search. Type a formula, get an instant molar mass.

Search
Elements

the deep dive

Bohr model, quantum probability cloud, emission spectrum, isotope makeup, ionization ladder — and a shareable poster for every element.

the deep dive

The Lab · 25

Living calculators,
not a form dump.

Tools arranged as instruments. An ideal-gas particle box that responds to temperature. An animated dilution beaker. A pH spectrum you scrub with your thumb.

Balance
Balance → conservation receipt. The strongest tool in the bench.

Reactions

5
  • Balance
  • Reaction Predictor
  • Molar Mass
  • Stoichiometry
  • Moles

Solutions

6
  • Molarity
  • Dilution
  • Dilution (mass)
  • Mass Conc.
  • Percent Conc.
  • Solubility

Acids & Bases

3
  • pH
  • pOH
  • Buffer

Equilibrium & Kinetics

3
  • Equilibrium
  • Reaction Rate
  • Activation Energy

Gases & Matter

2
  • Ideal Gas
  • Density

Reference

6
  • Bond Type
  • Polyatomic Ions
  • Solubility Rules
  • Activity Series
  • Constants
  • SI Units & Prefixes

ChemKeys

Type chemistry
anywhere.

A system-wide keyboard that types proper formulas in any app — Messages, Notes, Mail. Subscripts, superscripts, charges, and reaction arrows, rendered correctly.

  • Proper subscripts & superscripts — H₂O, SO₄²⁻, Fe³⁺
  • Reaction arrows — 2H₂ + O₂ → 2H₂O
  • Fully offline. No full access required.
ChemKeys
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

ChemKeys never requests full access: no network, no logging, nothing leaves the keyboard.

Built private, by design

Drawn dark for a reason.
Private for a reason.

Nothing leaves your device

All chemistry runs on-device. No account, no tracking, no network calls. The ChemKit engine is native Swift — your formulas, molecules, and history never touch a server.

All chemistry runs on-device. No account, no tracking, no network calls.

Standing on shoulders

Every value is traceable to its source. Chemistry Explorer is a specimen cabinet — the specimens come from the open scientific record.

  • RDKit Open-source cheminformatics — SMILES, 2D coords, ring perception
  • NIST Atomic spectra & isotope data
  • IUPAC Standard atomic weights & nomenclature
  • Bowserinator Periodic-Table-JSON seed dataset