Scrivener is famously great for writing books — but all of its tremendous features can also be used for scriptwriting.

LINKS:
William Gallagher rabbits on about Scrivener on the new Write Scrivener podcast: https://www.literatureandlatte.com/blog/write-now-with-scrivener-episode-no-16-william-gallagher-playwright-novelist-and-tech-journalist

58keys on Scrivener for iPad: https://studio.youtube.com/video/n99juTVxGOw/
58keys: Three Biscuit Guide to Scrivener: https://studio.youtube.com/video/2d55-sbWMh4/
58keys interview with Scrivener expert Martin Sketchley: https://studio.youtube.com/video/hbPSE4mox5E/
Scrivener: https://www.literatureandlatte.com
Final Draft: https://www.finaldraft.com
Highland 2: https://highland2.app