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Proteus Design Suite vs Altium Designer: catalog facts
Proteus Design Suite	Altium Designer
Paid Commercial software sold by Labcenter Electronics.	Paid Commercial license; no free tier.
Windows	Windows
Simulates microcontroller firmware together with the circuit Schematic capture and PCB layout in one suite	Covers the full workflow from schematic and simulation to layout and manufacturing files Widely used in professional electronics teams, so training and library resources are plentiful
Commercial licence required Pricing is not listed on the homepage	Expensive commercial licensing aimed at professional teams, not hobbyists Windows-only, with a steep learning curve for newcomers to PCB design
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 22, 2026

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