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Proteus Design Suite vs DesignSpark PCB: catalog facts
Proteus Design Suite	DesignSpark PCB
Paid Commercial software sold by Labcenter Electronics.	Freemium Free plan available, with paid Creator and Engineer plans that add advanced features.
Windows	Windows
Simulates microcontroller firmware together with the circuit Schematic capture and PCB layout in one suite	Free plan without limits on layers, connections or schematic size Schematic capture and PCB layout in one program
Commercial licence required Pricing is not listed on the homepage	Several newer features are limited to paid plans Not open source
Downloadable app	Downloadable app
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	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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