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LTspice vs SimulIDE: catalog facts
LTspice	SimulIDE
Best for: Electronics engineers, students and hobbyists simulating analog circuits	Best for: Students and hobbyists experimenting with electronics and microcontrollers
Free Free to download from Analog Devices.	Free Free and open source under the AGPLv3 licence.
Windows	Linux
SPICE simulation with schematic capture in one program Built-in waveform viewer for inspecting results All 3 strengths for LTspice SPICE simulation with schematic capture in one program Built-in waveform viewer for inspecting results Free of charge	Simulates PIC, AVR and Arduino microcontrollers alongside analog and digital parts Built-in code editor and debugger with breakpoints All 4 strengths for SimulIDE Simulates PIC, AVR and Arduino microcontrollers alongside analog and digital parts Built-in code editor and debugger with breakpoints Oscilloscope, logic analyser and serial monitor included Quick drag-and-drop circuit building
Simulation only, with no PCB layout Details could not be confirmed from the official page at research time	Aimed at learning and hobby work rather than professional circuit design Debugging is described as basic
Downloadable app	Downloadable app
Not open source	Open source
License not stated	License: AGPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for LTspice analog.com/en/resources/design-tools-and-calculators/ltspic… Catalog checked September 24, 2026	Official website Full listing and sources Sources for SimulIDE simulide.com Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.