Before the recent iOS update, this app )by its nature) was my most used app, as it’s beautifully designed, simple to use, integrated with HealthKit, and best of all, helps my monitor my cigarette consumption. But, the app hasn’t been updated in a year, and now it’s quite buggy- especially the Apple Watch app, which never seems to be in sync with the iPhone app. I really hope the developer releases an update soon to address these issues. If they do, I’d happy change my rating to 5 stars.