Allow the user to toggle if they want Firebase messaging to alert them with a notification to remind them that it is a workout day, maybe allow the user to user a check box style page to select which days of the week they have scheduled to workout and then the notification will alert them on the days respectively.
Allow the user to toggle if they want Firebase messaging to alert them with a notification to remind them that it is a workout day, maybe allow the user to user a check box style page to select which days of the week they have scheduled to workout and then the notification will alert them on the days respectively.