Timelines is an iPhone app that lets you track your time visually on an interactive timeline. The main purpose is to help users make the best use of their time by providing a clear picture of where their time is going, enabling them to improve over time.

Key features include tracking time visually on an interactive timeline, creating timelines for each project or activity, using timers to keep track of activities, adding events retrospectively and adjusting their times, viewing statistics mode with interactive timeline scaling from big picture overview down to single day, defining daily, weekly, and monthly targets for categories with rewards for reaching them, and tracking time from Apple Watch with features like starting and stopping timers with one tap, correcting timers with digital crown, setting event names using dictation, and working without phone connection.

The app works by allowing users to create timelines for projects or activities and use timers to track what they're doing. Users can see trends over time with interactive bar charts showing how time spending habits evolve over days, weeks, months, and beyond. Widgets provide instant overview of goals, statistics, individual categories, and tracking status right on the home screen.

Benefits include helping users become more productive and lead more fulfilling and intentional lives by providing a realistic view of how time is spent. Use cases include tracking activities like sleep, commute, focused work, lunch break, family time, and procrastinating.

The target users are people who want to take control of their time and improve productivity. The app integrates with Apple Watch and offers Shortcuts integration. It's designed specifically for iPhone and Apple Watch platforms.