The app used to be small and good looking with nice synchronization between the iPhone and Watch, I especially like the simple droplet complication and widget. It is very easy to use. But over time it got more and more bloated with features. I just want to track my water intake, not all those stats, gamification and stuff. A couple of years ago the sync broke and it hasn't been fixed yet. They promised to work on it but somehow it seems to be impossible. I'm glad I could disable the lot of the extras, but now the filesize of the app is getting out of hand. Over 300MB for a HealthKit tracker? If there were working alternatives I would have switched to another app, so that must be they main selling point by now.