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Artweaver vs PaintTool SAI: catalog facts
Artweaver	PaintTool SAI
Freemium Free edition, with a paid perpetual Plus license for extra features.	Paid Paid license after a 31-day full-featured trial.
Windows	Windows
Free edition with realistic brushes Layers, filters, selections and plugins	Smooth anti-aliased strokes suited to line art Full tablet pressure support
Windows only Some features reserved for the paid Plus edition	Windows only, and not supported in virtual machines No high-DPI monitor support
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
Works offline	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.