Stoplay

Player for teachers because of its option to add stopping points to playlists.
User can add a stopping point after any of the tracks in the playlist and playback will stop at that point, without user having to stop it manually.
Player also prepares playback at the next track, so that when teacher wants to play next track, he or she only needs to press play. App does the rest!

This feature makes it very useful in classes, where audio tracks with pauses for lectures are essential. Takes a lot of work from teachers' shoulders, because with this app, teacher does not need to be present at the device to stop the playing, but rather concentrates on lecture.