App: SubShift
Developer: G Raggers
Genres: Foto und Video, Dienst­programme

SubShift is free and simple to use.

It has limitations too: SubShift only works with mp4, mov and avi video files and srt subtitle files. These formats have a coverage of over 90% though.

Release notes:
Version 2.0.2 changes [221230] :
• Rebuild form scratch