Out of 41+ lewis structure apps and games on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
Compare top Lewis Structure Apps & Games (August 2026)
Learn chemical bonding through an interactive, game-like experience. Manipulate valence electrons to construct 2D Lewis dot structures and unlock rotatable 3D molecular models. Progress through increasingly complex challenges with guided learning and reflection.
Instantly solve any chemistry problem with step-by-step explanations. Upload or photograph your questions, and get detailed solutions for various chemistry topics, from high school to advanced research. Offers a free trial before subscription.
Explore an interactive periodic table with 3D models and AR features. This app offers an AI-powered tutor for simplified explanations, a reaction solver, and a molar mass calculator. It's a comprehensive reference for students and professionals to learn chemistry effectively.
What We Love
👍 Convenient and easy to use
🚀 Helpful for chemistry studies
💡 Detailed periodic table and element information
🔍 Useful features like molar mass calculator and reaction balancer
What are the best lewis structure apps & games for iPhone?
Chemical Valence tops our lewis structure apps & games ranking as of August 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Are there free lewis structure apps & games for iPhone?
Yes — 19 of the top lewis structure apps & games we rank are free to download, including Chemical Valence and Chem AI - Chemistry Solver.
Does Chemical Valence have ads or in-app purchases?
Chemical Valence has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
How many lewis structure apps & games are on the App Store?
We track 41+ lewis structure apps & games on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
What is Chemical Valence?
Chemical Valence is a free educational app designed to teach the basics of chemical bonding. It uses a game-like interface where users manipulate valence electrons to form molecules and visualize their 3D structures.
How does Chemical Valence teach molecular geometry?
By successfully creating a 2D Lewis dot structure, users are rewarded with a rotatable 3D model. This feature helps visualize the actual geometry of the molecule, enhancing understanding.