Simple Calendar is a perfect calendar app for Android users who own low-end devices or have minimal Google Apps installations. This app is designed to schedule future events and get notifications about them. Root permission is not required, making it even more convenient for users.

The app has a simple and user-friendly interface, which makes it easy to use. You can schedule your future events at specific times and get notified about them. The app also provides the feature of sticky notifications, which reminds you of your scheduled events all day. You can view your past events as well.

In summary, Simple Calendar is a minimalistic calendar app that is perfect for Android users who want a simple and easy-to-use app. It is free, has a simple interface, and offers all the basic features required in a calendar app.