Well, I just purchased the paid version of Memrise. The only new active training model I got was Difficult Words. Speed Review is not available. I do know that Speed Review works on the web app and the main reason I purchased the iOS paid one was to get Speed Review.
I don’t have Listening Skills and Learn with Natives for my courses – maybe one day Memrise will make Tibetan versions for this.
Meanwhile, is this a bug? Missing feature (if so it should not even be shown), something else? This is most likely an issue, I assume with any course not created by Memrise or in general. So I would classify this as a P1 (severe) bug.