Meet the elements
Explore properties, electron shells, history and uses. Search by name, symbol or atomic number.
Big discoveries start with small elements
A whole world of chemistry.
Get to know all 118 elements. Explore their properties, understand reactions and follow calculations from formula to answer.
Free download · optional Pro features

App screenshot
Why you’ll love it
Explore properties, electron shells, history and uses. Search by name, symbol or atomic number.
Balance equations, calculate molar mass and work through solutions and pH with solvers that show their steps.
Read the chemistry handbook and practise across 15 topics. Pro adds a virtual lab with animated molecules and an on-device AI tutor.
FAQ
Answers before you get started.
Yes. The handbook and its reference content are available offline after installation. Apple Intelligence features also require a compatible device and a downloaded system model.
You can download the app for free. The reference handbook stays useful without Pro; additional learning tools and AI features depend on the app’s Pro plan. The App Store and the in-app purchase screen show the current options.
No. You can read and use the handbook without it. The AI tutor is optional and requires a compatible iPhone or iPad with Apple Intelligence enabled; supported languages depend on your system.
The app is available for iPhone and iPad. Check the App Store page for the current operating system and device requirements.
Free download · optional Pro features
AI tutoring is a Pro feature. It needs a compatible iPhone or iPad, iOS/iPadOS 26 or later, and enabled Apple Intelligence. Availability varies by language and region. AI answers can contain mistakes.