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Sketch vs Linearity Curve: catalog facts
Sketch	Linearity Curve
Paid Paid subscription software.	Freemium Free to start, with paid tiers for additional features.
macOS	macOS, iOS
Long track record as a dedicated UI design tool Established plugin ecosystem	Fast, touch-friendly workflow tailored to Apple devices Free tier available to start with
Mac only, no Windows or Linux version Paid subscription required	Mac and iOS only, no Windows or Linux support Advanced features require a paid plan
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 22, 2026	Official website Full listing and sources Checked September 22, 2026

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