Can the iPhone 6 timelapse jpg's?

The camera has a time lapse option but by default it seems to generate a movie. Is there any way to get it to generate a sequence of jpg's instead.

Because the movies are in some weird format other than an mp4.

And how do you select the time lapse rate?

Time lapse actually is video, they are MOV format which is pretty standard, most videos are WMV, MOV, AVI, MP4

Not that it seems to do that, it is designed to do that.
No the Time Lapse feature in the camera only generates videos, not works with pictures though there are apps available that can.
Can't select the rate. Again there are apps that can allow that though