In case you're not aware, you can slow down Youtube videos up to 200% without affecting the pitch via the gear icon for free. I haven't used Transcribe! since this feature was added.
I love those features too. But Youtube gets you a long way for free. And that capability is kind of buried, so the OP may not have been aware it existed. None of those great Transcribe! and Amazing Slow Downer features work on Android at all. So the OP can either make do with Youtube or use something like Tempo SloMo to get those advanced features.But YouTube doesn't let you loop sections, put in and save markers (i.e., to mark choruses or difficult licks), etc., does it?
For me, this is one of the main advantages of software like Transcribe and The Amazing SlowDowner. I also tend not to like tools that you can only use online.