Celtx vs LyX

Celtx is cloud-based software for writing, planning and managing media-production projects, including film, television, commercials, documentaries and interactive media. Script editors cover film and television screenplays, stageplays, multi-column audiovisual scripts and game scripts. Story development includes Beat Sheet, Storyboard and Script Goals & Insights; production planning tools cover breakdowns, catalogs, shot lists, scheduling, cast and crew, sides, budgets, call sheets and reports. Users can collaborate in real time with comments, presence awareness, permissions and shareable read-only links. Script revisions, feedback and approvals have a history. The cloud product runs in a browser, while Celtx Screenplay is listed for Windows computers and Android devices; mobile browsers include iPhone Safari support. The free plan allows one project, and the Writer plan supports up to three. Paid Writer billing is $11.24 a month when billed yearly, and a seven-day trial is listed. The maker is based in St. John's, Newfoundland and Labrador, Canada, and was founded in 2000.

LyX is a document processor for structured writing, combining TeX and LaTeX capabilities with a graphical interface. It suits work ranging from academic articles, theses, and books to letters, novels, plays, and film scripts. Its equation editor accepts point-and-click input or LaTeX commands and renders formulas on screen. For document organization, LyX includes labels, references, indexes, and bibliography tools, with advanced BibTeX support. Configurable converters handle imports and exports including LaTeX, PDF, PostScript, DVI, ASCII, HTML, OpenDocument, RTF, and MS Word. It supports multilingual documents, right-to-left writing, CJK writing systems, and Unicode. Basic links to Maple, Maxima, Octave, and Mathematica are available, while modules can add Noweb, Sweave, and LilyPond support. LyX works offline on Linux, macOS, and Windows, and supports track changes and external version control systems such as Git. It is free software under the GPL. Windows requires a TeX distribution; Mac installations require a TeX system such as MacTeX.