I guess the developer has abandoned this app. The videos does not work. Like Elsa this app has a lot of potential but without the videos it's useless.
Broken videos? "sorry, the video cannot be played" - what is the point of downloading it than?
Video doesn't work!
Can not play video
Wtf, can't play video
The ultimate mobile English pronunciation aid, for both students AND teachers.
PEP is 3D Face Diagrams to Instruct Proper Tongue Placement and Improve English.