What are some alternatives?
When comparing Pretty Captions and Caption, you can also consider the following products
Captioned - Say, show, share. Create a 60 second captioned video.
OpenSubtitles.org - OpenSubtitles.org was developed for easy downloading and uploading subtitles for movies.
Instaspacer - Putting the spaces back into Instagram
Subscene - Subscene is a site where you can find subtitles for almost any movie or TV and movie show in almost...
Caption Writer for Instagram - Notepad for Instagram – but better.
Subtly - Learn English with smart subtitles on movies and TV shows