
Calliope
8.0#19 in writing appsFrom €99 a yearFree planWebAPI
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| Fact | Calliope | Celtx |
|---|---|---|
| Free plan | Yes | Yes |
| Headquarters | Bratislava, Slovakia | St. John’s, Newfoundland and Labrador, Canada |
Calliope may suit book writers who want outlining, chapter organization, and continuity tools in a web editor. Its free plan is relevant to writers working on unlimited books.
Celtx suits writers and production teams working on film, television, documentaries, commercials, or interactive media. Its collaboration and planning tools may help teams sharing scripts and production tasks.