Caption - Open-source captioning tool to help find the right subtitles.
Subtly - Learn English with smart subtitles on movies and TV shows
Captioned - Say, show, share. Create a 60 second captioned video.
Bazarr - Bazarr is a companion application to Sonarr and Radarr that manages and downloads subtitles based on your requirements.
Caption This - Create a smart caption for your photo in a second!
CaptionPop - Watch YouTube videos with multiple subtitles simultaneously