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BlocksCAD vs 3D Slash: catalog facts
BlocksCAD	3D Slash
Freemium Basic accounts are free; education features have a 30-day trial or come through a school…	Freemium Can be started for free; see the product page for current plans.
Web	Windows, macOS, Linux, Android, iOS, Web
Block-based programming suited to beginners Runs in the browser with no install	Block-carving interface that is quick to learn Runs on desktop, mobile, Raspberry Pi and the web
Education features require a trial or school code Aimed at learning rather than detailed engineering work	Block-based approach is less suited to precise engineering parts Pricing details are not clearly shown on the homepage
Web application	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.