How Every Lesson Works

Each topic follows a structured 5-step pedagogical sequence: The Daily Habit, The Complete Syllabus Pathway, The 4-Step Lesson Hub, Rich Interactive Notes and Diagrams, and The Lab and Mastery Tools.

No menus, no complexity. Pick a calculator, enter your values, and the app does the rest. Every answer comes with the full working shown step by step.

FOR iPHONE & iPAD

Chemistry apps

Q: What You Get, Honestly

Our revision app is a free download with no account required. Here is exactly what is included.

Revision notes, an IB study planner and step-by-step calculators.

ChemEasy Today screen showing streak, daily goals, and focused next step

ChemEasy: 4 Curricula, One Structured Path

Structured learning with 384 lessons, active recall flashcards, and quizzes across AQA GCSE, Edexcel IGCSE, AQA A-Level, and IB DP Chemistry.

For iPhone and iPad

Get ChemEasy Explore the app ↓

Free download. Optional Pro upgrade available in-app.

In-Depth Preview

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Available on iOS

Your Entire Curriculum,
One Learning Path.

ChemEasy turns your AQA GCSE (8462), Edexcel IGCSE (4CH1), AQA A-Level (7405), or IB DP Chemistry (2025-2027) syllabus into a structured learning path. 384 lessons across 4 curricula with 150+ interactive vector diagrams, 3D molecule models, interactive periodic table, and 100% offline access. Each topic follows a proven active learning pattern: read notes, study flashcards, pass the quiz, and master the chemistry.

384 Lessons & 4 Curricula: Full syllabus coverage for AQA GCSE (8462), Edexcel IGCSE (4CH1), AQA A-Level (7405), and IB DP Chemistry (2025-2027)

150+ Interactive Vector Diagrams & 3D Models: Touch-inspectable diagrams, 3D molecule models (Water, Diamond, Graphite, NaCl, Methane), and core and required practicals

Interactive Periodic Table & Calculators: Element explorer, step-by-step calculators with "Help Me Understand" intuition breakdowns, and 100% offline access with zero sign-in required

Download on the App Store

Free download. No account required. Completely ad-free.

ChemEasy Daily Study Habit showcase featuring Today screen and Lesson Hub side-by-side on iOS

ChemEasy syllabus pathway showing vertical topic progression and unlock path

ChemEasy 4-step lesson hub showing Understand, Recall, Apply, and Quiz structure

ChemEasy deep dive notes with interactive vector particle diagrams

ChemEasy lab tools showing spaced review, wrong answer bank, calculators, and periodic table

The Daily Habit

Start each day on the Today screen with your daily streak, bite-size revision goals, and a focused next step. Build consistent revision habits without cognitive overload.

The Complete Syllabus Pathway

Navigate your full course specification along a structured vertical topic progression. Lessons unlock step by step as you prove comprehension, ensuring no syllabus gaps remain.

The 4-Step Lesson Hub

Master every concept with our 4-stage active learning workflow: Understand key ideas, Recall definitions via flashcards, Apply reasoning to exam-style problems, and Quiz to lock in retention and earn XP.

Rich Interactive Notes & Diagrams

Engage with concise syllabus-aligned notes featuring 150+ interactive vector diagrams. Touch to inspect particle models, explore apparatus setups, review examiner tips, and avoid common traps.

Rich Interactive Notes screen showing particle theory with interactive vector diagrams

The Lab & Mastery Tools

Reinforce retention with Spaced Review queues, the Wrong Answer Bank for targeted error fixing, multi-mode calculators with full working, the interactive Periodic Table, and quick reaction challenges.

The Lab screen showing Spaced Review, Wrong Answer Bank, Calculators, and Periodic Table

AQA GCSE (8462)

AQA GCSE Chemistry (8462)

Complete coverage of all 10 topics from Atomic Structure to Using Resources. Includes all required practicals, 150+ interactive vector diagrams, 3D molecule models (Water, Diamond, Graphite, NaCl, Methane), and foundational to higher tier pathways.

AQA GCSE Chemistry syllabus pathway showing vertical topic progression

Edexcel IGCSE (4CH1)

Edexcel IGCSE Chemistry (4CH1)

Full syllabus coverage across Principles of Chemistry, Inorganic, Physical, and Organic Chemistry. Features all core practicals, step-by-step calculators with "Help Me Understand" intuition breakdowns, and targeted active recall flashcards.

Edexcel IGCSE Chemistry lesson hub showing core activities and practicals

AQA A-Level (7405)

AQA A-Level Chemistry (7405)

Rigorous modular coverage across Physical, Inorganic, and Organic Chemistry. Encompasses all 12 required practicals, curly arrow reaction mechanisms, thermodynamic cycles, spectroscopy analysis, and exam-style structured practice.

AQA A-Level Chemistry interactive notes with vector particle diagrams

IB DP (2025-2027)

IB DP Chemistry (2025-2027)

Tailored to the latest 2025-2027 syllabus guide across Structure 1-3 and Reactivity 1-3. Filter smoothly between Standard Level (SL) and Higher Level (HL), with our interactive Periodic Table explorer and dedicated inquiry tools.

IB DP Chemistry lab tools including periodic table explorer and calculators

What You Get, Honestly

ChemEasy is a free download with zero account creation required, 100% offline access, and completely ad-free learning. Every student gets the complete core curriculum without paying a penny.

Free for Everyone Free

Core Student Features

Everything you need to understand, practice, and pass your exams.

All 384 lessons across AQA GCSE, Edexcel IGCSE, AQA A-Level, and IB DP
100% offline access once loaded; study anywhere with zero Wi-Fi
Zero sign-in required and completely ad-free with zero data tracking
150+ interactive vector diagrams and 3D molecule models (Water, Diamond, Graphite, NaCl, Methane)
Interactive Periodic Table and step-by-step calculators with "Help Me Understand" intuition breakdowns
Core and required practicals with methods, observations, and error analysis

Lifetime Upgrade Pro

ChemEasy Pro

For students aiming for top grades who want unlimited revision mastery.

Infinite Hearts: Unlimited quiz attempts with zero cooldown waits or heart depletion
1,270+ Grade 8/9 & HL cards: High-tariff active recall cards targeting top exam grades
Full 6-marker model mark schemes: Step-by-step Level of Response criteria and examiner guidance
Wrong Answer Bank: Automated mistake tracking and targeted remediation quizzes
Advanced calculators & premium themes: Auto-Mr parser, reacting masses, limiting reactant, equation balancer, and dark glass themes

Download on the App Store

ChemEasy is free for iPhone and iPad. Optional ChemEasy Pro lifetime upgrade available with zero recurring subscriptions.

New on iOS

Plan Your IB Revision,
Week by Week.

ChemPlan IB builds you a personalised study schedule based on your exam date, your level (SL or HL), and the topics you have already covered. It takes about 60 seconds to set up.

Personalised week-by-week plan covering all 22 IB Chemistry topics, weighted by difficulty

Built-in Pomodoro timer with focus sessions, short breaks, and long breaks to keep you productive

No account, no subscription, no ads. Your data stays on your device. Built by a chemistry teacher.

Download on the App Store

Free download. No account required.

ChemPlan IB dashboard showing 392 days until exam, progress tracker, weekly study activity, and month-by-month plan view

ChemPlan IB Pomodoro focus timer showing 24:58 countdown with Focus, Short Break, and Long Break modes

ChemPlan IB setup screen showing exam session, SL/HL level, revision weeks, and topic selection options

Choose Your Exam Session

Select your exam session (May or November) and choose Standard Level or Higher Level. The app adjusts the topic list and difficulty weighting to match your course.

ChemPlan setup screen showing exam session and level options

Tick Off Topics You Know

Already covered some topics in class? Tick them off. ChemPlan skips what you already know and distributes the remaining topics across your available weeks.

ChemPlan settings screen showing topic checklist with search and Update Plan button

Tap Generate

The app divides the remaining topics across your available weeks, weighted by difficulty, and adds dedicated revision weeks before your exam. That is it.

Plan Generated

Study with the Timer

Use the built-in Pomodoro timer to stay focused during each session. Track your daily study streak and see which days you have studied each week.

ChemPlan Pomodoro timer showing Focus mode at 24:58

Dark Mode

Track Your Progress

See a live countdown to your exam, your overall completion percentage, and whether you are ahead of or behind schedule. Switch between list view and calendar view to see your plan however you prefer.

ChemPlan dashboard in dark mode showing 392 days left, 6% progress, and weekly activity tracker

Light Mode

Works in Both Themes

Prefer a light interface? ChemPlan adapts to your preference. The same dashboard, same progress tracking, same plan, all rendered in a clean light theme.

ChemPlan dashboard in light mode showing the same study plan and progress tracking

What ChemPlan Includes

A focused planning tool that does one thing well. Here is exactly what you get.

A personalised week-by-week study plan for all 22 IB Chemistry topics

Topics weighted by difficulty so harder material gets more time

Dedicated revision weeks built in before your exam date

Pomodoro timer with streaks and daily session tracking

iCloud backup and restore, dark mode, push reminders

No ads, no data collection, no subscription. Free forever.

Download on the App Store

Free for iPhone and iPad. No sign-up needed.

Available on iOS

Every Mole Calculation,
Solved Step by Step.

ChemCalc gives you five dedicated chemistry calculators with interactive formula triangles and full exam-style working. Enter your values, tap calculate, and see every step laid out exactly as an examiner would expect.

Interactive formula triangles for mass, concentration, and gas volume that highlight what you are solving for

Step-by-step exam working for every single calculation, exactly how your examiner expects it

Pro tools unlock auto-Mr formula parsing, reacting masses with stoichiometry, limiting reactant identification, and equation balancing

Download on the App Store

Free download. Pro upgrade available.

ChemCalc Mass and Mr calculator showing interactive formula triangle with mass, n, and Mr variables, solve-for buttons, and common Mr quick-select values

ChemCalc Concentration calculator showing solved result of 0.0208 mol per dm cubed with full step-by-step working

ChemCalc Gas Volume calculator showing moles result of 3.1667 mol with step-by-step working and exam tip about RTP and STP

Choose Your Calculator

Tap the bottom tabs to switch between Mass and Mr, Concentration, Gas Volume, Reacting Masses, or Equation Balancer. Each mode has its own interactive formula triangle.

ChemCalc Mass and Mr mode showing five calculator tabs at the bottom

Enter Your Values

Type in the values you know. Use the unit dropdowns to switch between g, kg, mg or dm cubed and cm cubed as needed. The app converts automatically.

ChemCalc Concentration mode with values entered and unit conversion dropdown

See the Step-by-Step Working

Every calculation shows the full method: write the formula, substitute your values, then the final answer. This is the exact format examiners expect. Copy it straight into your exam.

ChemCalc Gas Volume result with numbered step-by-step working and exam tip

Unlock Pro for Advanced Tools

Upgrade to Pro to unlock the auto-Mr formula parser (type any formula like CuSO4 to instantly calculate Mr), reacting masses with molar ratios, limiting reactant identification, and the equation balancer.

Pro Unlocked

Free

3 Core Calculators

Mass and Mr, Concentration, and Gas Volume calculators with interactive triangles, unit conversion, step-by-step working, and common Mr quick-select for H2O, CO2, NaCl, and more.

ChemCalc Mass and Mr calculator with formula triangle and common Mr values

Pro

Advanced Stoichiometry

Auto-Mr formula parser for any chemical formula, reacting masses with full molar ratio working, limiting reactant identification from two known masses, and Gaussian elimination equation balancer.

ChemCalc Reacting Masses Pro mode with equation input, balanced equation, and limiting reactant toggle

What You Get, Honestly

ChemCalc is a free download with three full calculators. Here is exactly what is included.

Mass and Mr, Concentration, and Gas Volume calculators, all free

Step-by-step exam-style working for every calculation

Interactive formula triangles and automatic unit conversion

Common Mr quick-select: H2O, CO2, NaCl, NaOH, CaCO3, HCl, O2

Pro upgrade: Auto-Mr formula parser, reacting masses, limiting reactant, equation balancer

No ads. No data collection. Dark mode included. Built by a chemistry teacher.

Download on the App Store

Free for iPhone and iPad. Pro upgrade available in-app.

Chemistry apps

ChemEasy: 4 Curricula, One Structured Path

Your Entire Curriculum,
One Learning Path.