First off i have never liked “strokers” (handy , fleshlight , etc) as they never did much for me (not to mention the handy is too small and i broke the inner sleeve first use) BUT i do use E-Stim and i convert funscripts into audio clips in a format i can use all the time - I also have a valid account on POVR (wtf , no dl of milfvr videos?! )
POVR does have interactive videos - BUT they require the feelme app - all the app does is send a position and speed to your handy/whatever - i can emulate a phone and setup feelme if needed but then what - there has to be a way to capture the incoming feelme stream so i can convert to a E-Stim file locally.
Even if i need to run the entire video at 1x speed to record the strokes it would give me more to work with.