The Charlii app is a project management tool for authors for free and you can upgrade to a paid package if needed. The app includes basic features in the free package such as writing a base, creating an outline, using the calendar, and setting reminders. It also includes a 2-week free trial of Create. With Charlii’s timeline feature allowing you to analyze chronology, plot points, and story arcs in an insightful and intuitive way, the app brings new clarity and efficiency to the story structuring process.