Amsterdam Density Functional vs Atomency

Amsterdam Density Functional has no write-up on Specifiction yet; its figures are above.

Atomency is a browser-based chemistry and physics learning platform with interactive simulations, virtual labs, an interactive periodic table, worked examples, and teacher tools. Its molecule builder displays VSEPR geometry, bond angles, lone pairs, hybridization, formal charge, and polarity. The site lists 29 browser simulations and 17 guided virtual labs, including calorimetry, spectrophotometry, buffer preparation, galvanic cells, and osmosis. Teachers can create assignments with molecule-building tasks, balancing challenges, and open-ended questions, while answers remain hidden in assignment mode. Assignments can be shared through school-approved links or exported for Google Classroom, email, or a district LMS. Atomency maps learning experiences to NGSS performance expectations and organizes content around AP Chemistry, IB Chemistry, and A-Level topics. Core public tools run in a modern browser without installation. Public individual exploration is free at free; official school or district adoption, required coursework, pilots, and managed deployment require a paid license or written authorization.