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Blisk vs Polypane: catalog facts
Blisk	Polypane
Freemium A time-limited free tier is available. Full use requires a paid subscription.	Paid A paid subscription is required after the trial.
Windows, macOS, Linux	Windows, macOS, Linux, Browser extension
Automatic reload on file change while several device frames stay in sync Screenshot and recording tools aimed at bug reports	Accessibility simulation and checks built into the browser itself Synchronised panes with live CSS editing across all of them
The free tier limits daily usage time Chromium rendering only, closed source	Paid subscription with no free tier beyond a trial Chromium rendering only
Downloadable app	Downloadable app, Browser extension
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.