Collisions Higher Education vs Interactive Chemistry

Collisions Higher Education is a digital game system for teaching and reviewing chemistry in college courses. It aligns with over 55 core concepts in introductory and general chemistry, organized into eight content areas: Radii Trends, Ionization Energy, Acid Strength, Lewis Structures, Ionic Bonding, Energy in Phase Change, LeChâtelier, and IMFs. Each game includes leveled challenges and an exploratory sandbox. Instructors can view student progress and performance in a teacher dashboard, and can use content overviews, quick start guides, formative assessments, and extension assignments. Instructor access is listed at free for US-based college and university educators. Student subscriptions cost $15 a year for a 12-month term; accounts are linked to an instructor’s class, and students register through an invitation URL supplied by the instructor. The product is listed for Android, iOS, macOS, web, and Windows. Playmada has ceased operations, while its FAQ says Collisions HE remains available and free to educators and students as of July 1, 2022. The FAQ also says the company no longer provides email, phone, or training support and directs users to a support forum.

Interactive Chemistry provides free science games and simulations for teaching topics from middle school through university level. Its activities cover ionic and covalent bonding, cellular respiration, reactions, and molecular interactions. Chemistry teacher Steven Sogo created the games with support from high school students at Laguna Beach High School. The Cell Model 2025 game is playable on iPads, Android tablets, and most phones. The Double Replacement Reaction Simulator works on laptops, Chromebooks, and mobile devices. In the Matchmaker double replacement game, students get immediate feedback when they form correct products and can practice balancing equations; its page also links to suggested lessons and an instructional video. The site lists Android, iOS, macOS, web, and Windows. Users can report bugs or suggest features through linked forms, and an email contact is provided. The maker describes its experiments and prototypes as unfinished and potentially buggy. Prototype code is available on GitHub for users to finish themselves. The listed plan is Free at free.