Needs some upgrades
I like that streaks is the most customisable workout app in terms of adding custom exercises and routines. The watchOS app needs a UI update for compatibility though as many controls are not visible on the screen so you need to navigate to the now playing app or whatever app is playing music to skip tracks, play or pause during a workout. I find it frustrating that the iPhone app pauses when you go to a different screen, even if it is during a break between sets. What if you’re responding to a message or checking something during your rest and you don’t want the break timer to pause. Overall this could be a better app than what it is but I still like it.