BIOLOGI SD is a free Android app developed by Sakti Builder. It falls under the Education & Reference category and is designed to teach second-grade students about biology. The app covers a range of topics related to biology, including plant and animal anatomy, ecosystems, and the food chain.

The app is user-friendly and easy to navigate, with colorful graphics and simple language that are appropriate for young learners. Each topic is presented in an interactive manner, with quizzes and games that reinforce the concepts learned. The app also includes a progress tracker that allows students to monitor their learning and track their progress over time.