Thank you for your feedback Paul.

You can tap the tempo in iReal Pro, here is how:
https://technimo.helpshift.com/a/ire...po-of-playback

Here is how to change the Count in:
https://technimo.helpshift.com/a/ire...yer&f=count-in

We don't have the blinking metronome feature but I added it to our list - which is still a pretty long one but we're working on it