Vertical Planner:CalendarTodo is a comprehensive calendar and organizer application designed for iPhone users. It offers excellent listability, allowing users to sync with Google Calendar via the iPhone calendar. The app provides features such as ToDo lists, memos, diaries, and image support. A unique half-organizer function enables simultaneous viewing of calendar and organizer functions. Users can customize background colors and icons for visual schedule management.

Vertical Planner:CalendarTodo optimizes the iPhone's vertical screen with daily planner functions reminiscent of a paper planner. It includes features like to-do lists, notes, diaries, and image support to enhance organization. The app offers a half-view function for multitasking, displaying schedules and notes simultaneously. Moreover, it supports three-month calendar views on iPad and Mac for long-term scheduling overview.