家計簿カレンダー combines a calendar and a flexible budget tracker allowing users to customize expense categories. The app integrates a calendar for scheduling events and tasks, and a comprehensive budgeting tool for managing finances effectively.

For calendar features, users can easily register events by tapping on the desired date, filling in necessary details, and adding new events. A home screen widget can be set up to display the calendar conveniently.

The budgeting section provides tools to set up expense and income categories, record transactions, view monthly summaries, and analyze spending with customizable graphs. A dedicated widget enables quick expense recording and list display for efficient money management.