You can use a variety of decoration items for your calendar
• Color Palettes
More powerful time management features are provided.
• Create tasks in calendar
• Remove ads
• Recommendation reminder settings
• Support for all service connections
• File attachment function
• Pie chart function
• Plans creation
• Habit management
Premium account is subscriptions item. You can choose monthly or yearly subscription item. Subscription automatically renewed unless auto-renew is turned off at least 24 hours before the end of subscription period. Subscriptions may be managed in your iTunes Account's Settings after purchasing.