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Sketch vs Frame0: catalog facts
Sketch	Frame0
Paid Paid subscription software.	Freemium Free to download; check the site for any paid licence terms.
macOS	macOS
Long track record as a dedicated UI design tool Established plugin ecosystem	Hand-drawn style wireframes in the Balsamiq tradition Works offline
Mac only, no Windows or Linux version Paid subscription required	Focused on low-fidelity wireframes rather than full UI design Pricing details are not stated on the homepage
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	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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