OnyxLife is an all-in-one health and productivity app. Track workouts with gym programs and GPS running, log your menstrual cycle with predictions and partner sharing, build daily habits, manage tasks with deadline reminders, and read books all in one place. Features include focus mode that reshapes the app around your goals, a virtual pet that grows with your activity, community boards, and personalised daily insights. Works on web, Android, and iOS. Built solo by one developer from Scotland.