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Simplify3D vs PrusaSlicer: catalog facts
Simplify3D	PrusaSlicer
Best for: Prepare and preview print jobs with a commercial 3D slicer	Best for: Slicing on a Prusa, or for a resin printer, without an account
Paid Requires a paid license or subscription. Trial availability and licensing depend on the edition.	Free Free and open source under the AGPL 3.0. No account is required to use it.
Windows, macOS, Linux	Windows, macOS, Linux
Provides configurable slicing processes Includes support-generation and toolpath controls	Handles both filament and resin printers in one program Per-layer setting changes and painted supports and seams All 4 strengths for PrusaSlicer Handles both filament and resin printers in one program Per-layer setting changes and painted supports and seams Profiles for printers well beyond Prusa's own range No account needed, and the project says so plainly
Requires a paid license and an appropriate printer profile.	Linux builds come only through Flathub Tuned first for Prusa hardware; other machines need profile work All 3 limitations for PrusaSlicer Linux builds come only through Flathub Tuned first for Prusa hardware; other machines need profile work The interface exposes fewer calibration tools than OrcaSlicer
Downloadable app	Downloadable app
Not open source	Open source
License not stated	License: AGPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for Simplify3D simplify3d.com Catalog checked September 22, 2026	Official website Full listing and sources Sources for PrusaSlicer prusa3d.com/prusaslicer github.com/prusa3d/PrusaSlicer Catalog checked September 21, 2026

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