Simply Science's Kingdom Plantae is an Android application that teaches users about the plant kingdom and its importance on Earth. The app provides a conceptual framework for how plants evolved from green algae and allows users to classify the plant kingdom. Additionally, users can explore the differences between seed and seedless plants and learn about the key components of the gymnosperm and angiosperm life cycles.

The app is designed for K-6 to K-12 grades and is aligned with best practices of learning and teaching. It features visually rich content that is simple and easy to understand, making it an excellent resource for students, teachers, and parents. Furthermore, the app covers Biology subject as a part of the Evolutionary Biology topic.

One unique aspect of Simply Science is that it contains information about the applications of algae to human welfare, providing users with a comprehensive understanding of the plant kingdom's role in our lives. The app is free to use and is an excellent resource for anyone looking to expand their knowledge of the plant kingdom.