Localy stored movies played via kodi (available on most platforms except ios) or MrMc (available on ios) have the ability to mute audio (profanity) or skip designated scenes. This is controlled via an .edl file.
Filterflix will read an uploaded subtitle file and create an .edl file to mute profanities. (Any desired skip scenes would need to be added manually later as these obviously can not be determined from a subtitle file.) The created .edl file (named exactly the same as the movie file other than the extension .edl) needs to be placed in the same folder as the movie.