CalToDo is a simple and user-friendly calendar app designed for Android devices. It allows you to manage your schedule and to-dos, and view them on a single calendar. With a minimalist approach, this app is perfect for those who want a straightforward calendar app.

One of the great features of CalToDo is the ability to set holidays and customize the starting day of the week. You can also switch to dark mode for reduced eye strain. Additionally, the app includes a repeat registration function, allowing you to easily register the same event in your calendar. With the notification function, you can set reminders for important appointments.

Overall, CalToDo is a useful app that allows you to manage your schedule and to-dos efficiently. The interface is simple and user-friendly, making it easy to navigate and use. More features are planned to be added in the future, making it a promising app for those in need of a calendar and to-do app.