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Instead, take advantage of legal channels: school site licenses, homeschool purchases, or free trial keys. And if budget is truly an obstacle, PhET and GeoGebra offer respectable alternatives.

| Software | Subject | License | Key Feature | |----------|---------|---------|--------------| | (Univ. of Colorado) | Physics, Chem, Math | Free (open source) | 150+ HTML5 sims, runs in browser | | OpenSCAD | 3D modeling | Free (GPL) | Programmatic design | | Logisim | Digital logic | Free (MIT) | Circuit simulation | | GeoGebra | Math & geometry | Free (non-commercial) | Excellent for graphing & calculus | | ChemDoodle Web Components | Chemistry | Free for education | 3D molecules & spectra | yenka activation key