Sobriety is a simple day tracking app built using Kotlin and Android Studio. It allows users to track their journey of sobriety by selecting a starting date and then displaying the number of days that have passed since that date. The app also provides a personalized welcome message that changes based on the time of day.

• Sobriety Tracking: Users can choose a date to mark the start of their sobriety and view the number of days since then.
• Welcome Message: The app displays a warm welcome message to the user, which changes dynamically based on the time of day.
• Persistent Data Storage: The app utilizes Shared Preferences to store the user's sobriety start date, ensuring it is saved and accessible across app sessions.

1. Select a date: On the main screen of the app, choose the date that marks the beginning of your sobriety.
2. Track your progress: The app will calculate and display the number of days that have passed since your sobriety start date.
3. Get a personalized welcome message: The app greets you with a warm welcome message that adjusts based on the time of day, providing a pleasant and motivating experience.