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Fade In vs Celtx: catalog facts
Fade In	Celtx
Paid A paid licence is bought from the developer's website.	Freemium Free account available, with a 7-day trial of paid features.
Windows, macOS, Linux	Web
Automatic industry-standard screenplay formatting Tools for outlining, organizing and navigating a script	Script editors for many formats, including theater and games Storyboard and beat sheet tools
Paid software with no free tier described Focused on scripts, so not a general-purpose word processor	Many features sit behind paid plans Requires an account
Downloadable app	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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