Chemistry you can interact with

Don’t just memorize chemistry. Make it move.

Kemistry brings the periodic table, calculations, reference equations, and five interactive lab benches into one focused iPhone and iPad app.

Download on theApp Store Explore the app

Works offline
No account required
Built for iPhone and iPad

Kemistry Lab screen showing five interactive chemistry benches

Beer–LambertA = εbc

Cell potentialΔG = −nFE

ΔG°= −nFE°

A= εbc

q= mcΔT

pH= −log[H⁺]

One connected chemistry workspace

From “what is it?” to “what happens if?”

Look up an element, compare trends, solve a calculation, then open a bench and test the idea. Kemistry keeps the learning path connected.

Explore

Study the periodic table, electron structure, trends, bonds, and compound data.

Calculate

Work through chemistry quantities with units, significant figures, and clear steps.

Experiment

Change inputs and observe a modeled response in a purpose-built interactive bench.

Connect

Use a searchable reference sheet to connect symbols, equations, units, and conditions.

The complete free Periodic Table

Every element is more than a square.

Explore all 118 elements without an account or purchase. Search by name, symbol, or atomic number, then move into detailed data, structures, and explanations that make periodic behavior understandable.

Properties and real specimens

Inspect atomic and physical properties alongside multiple high-quality specimen photographs.

Electrons and orbitals

Study configurations, quantum numbers, shell populations, orbital diagrams, and interactive orbital clouds.

Spectra, isotopes, and trends

Explore emission spectra, naturally occurring isotopes, periodic trends, and successive ionization energies.

History, comparisons, and notes

Read discovery history, compare elements side by side, favorite key elements, and keep personal notes.

Atomic weightElectron configurationOxidation statesAtomic radiiIsotopesIonization energiesEmission spectraHistory

Included free

Sulfur subshell electron chart and interactive visible emission spectrum

Interactive sulfur 3p orbital cloud model

Sulfur history and naturally occurring isotope data — **History & isotopes**Discovery context, nuclides, masses, and natural abundance.

Sulfur distinguishing electron quantum numbers and simplified shell model — **Electron structure**Quantum numbers, orbital filling, and shell populations.

Sulfur emission spectrum and electron subshell chart — **Interactive spectra**Inspect UV, visible, and IR spectral lines.

Sulfur orbital probability cloud with controls — **Orbital clouds**Rotate, zoom, and inspect probability models.

Five interactive benches

A lab that responds to you.

Each bench is designed around a different chemistry question. Set it up, run it, inspect the result, and save only the trials you choose.

Included free

Reaction Sandbox

Build a reaction, watch particles interact, and connect amount, energy, and yield.

Explore bench

Full Access

Electrochemistry

Construct cells, follow ion and electron flow, and examine voltage under changing conditions.

Explore bench

Full Access

Spectrophotometry

Create a calibration, measure an unknown, and see Beer–Lambert law as an experiment.

Explore bench

Full Access

Titration

Control the buret, trace the pH curve, mark an endpoint, and compare indicators.

Explore bench

Full Access

Calorimetry

Track heat flow in coffee-cup and bomb calorimeters with an explicit energy balance.

Explore bench

Simple access

Start free. Unlock the advanced toolkit once.

Kemistry has no subscription and no account requirement. Full Access is a single non-consumable App Store purchase, with the localized price shown before you buy.

Included free

Core chemistry tools

Complete Periodic Table with all 118 element profiles
Formula calculator with worked steps
Reaction Sandbox
Searchable Reference Sheet

Kemistry Full Access

Advanced calculations and labs

Compounds, Bonds, Concentration and Solubility
Equilibrium and Acid-base tools
Electrochemistry and Spectrophotometry
Titration and Calorimetry

Kemistry in action

See the chemistry, not just the answer.

Explore data, set up an experiment, and watch the model respond. These are real screens from Kemistry on iPhone.

Kemistry periodic table with search and element categories — **Complete Periodic Table · Free**All 118 elements, detailed profiles, spectra, trends, models, and comparisons.

Reaction Sandbox setup for magnesium and oxygen with temperature controls — **Set up the experiment**Choose reactants, amounts, and conditions.

Magnesium and oxygen particles moving inside the Reaction Sandbox — **Run the model**Watch particles collide and react.

Zinc and copper electrochemical cell with labeled electrons and ions — **Electrochemistry**Follow electrons, ions, current, and mass.

Copper sulfate spectrophotometry bench with calibration plot — **Spectrophotometry**Build a calibration and measure an unknown.

Acid-base titration bench with buret, flask, and pH meter — **Titration**Control the buret and follow the pH.

Bomb calorimetry bench showing heat flow and temperature graph — **Calorimetry**See heat flow and the approach to equilibrium.

Kemistry Calculate screen with formula, compound, bond, concentration, and solubility tools — **Calculation tools**Choose a focused tool for formulas, structures, bonds, and solutions.

Kemistry Calculate screen with equilibrium and acid-base tools — **Equilibrium and acids**Work with equilibrium, pH, buffers, and titrations.

Searchable Kemistry Reference Sheet with constants and conversions — **Reference Sheet**Find equations, constants, symbols, and units.

Made for learning

A clearer bridge between equations and experiments.

For studentsBuild intuition before class, reinforce it after class, and practice without needing a physical lab.

For instructorsDemonstrate chemistry models, discuss assumptions, and give learners a shared visual reference.

Designed with restraintNo account is required. Core learning content works offline, and saved work stays on the device.

Reference Sheet

The equations you need, with the context they require.

Search constants, conversions, symbols, units, sign conventions, and conditions. Additional useful equations beyond the standard reference collection are clearly marked “Additional.”

See what’s included

Acids & basesSearch

pH = −log[H⁺]pH is dimensionless · [H⁺] in mol L⁻¹

K_a = [H⁺][A⁻] / [HA]For an acid dissociation equilibrium

pH + pOH = 14.00At 25 °C in dilute aqueous solution

Available now on iPhone and iPad

Put chemistry in motion.

Download Kemistry free and explore the complete Periodic Table, Formula calculator, Reaction Sandbox, and Reference Sheet.

Download on the App Store