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Story Architect (STARC) vs Trelby: catalog facts
Story Architect (STARC)	Trelby
Freemium A free version with unlimited projects is available, and some features are reserved for…	Free Free software under the GPL.
Windows, macOS, Linux, iOS	Linux
TV series with all episodes kept in one project Screenplays, comics, plays and books share one story bible	Enforces correct screenplay formatting and pagination Imports and exports Final Draft and Fountain files
Proprietary licence on Linux builds AI assistant relies on ChatGPT technology	Interface built with wxPython looks dated next to commercial tools No collaboration or cloud sync features mentioned
Downloadable app	Downloadable app
Closed source	Open source
License: Proprietary	License: GPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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