Final Draft - Use your creative energy to focus on the content; let Final Draft take care of the style.
Plottr - The #1 rated visual book planning and series bible software for professional and aspiring writers.
Celtx - Celtx is a scriptwriting software platform with applications in a wide range of mediums but that specializes in helping screenwriters.
Offline Notepad - Offline Notepad app allows users to create their weekly shopping list, so they don’t forget anything important.
Trelby - The free, multiplatform, feature-rich screenwriting program!
Epsilon Notes - Common Mark editor for Android and Windows