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

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