G Biology is an Android education and reference app developed by Gayatri Softwares. It is a free app that allows users to learn biology from 6th to 12th standard in both Hindi and English. The app offers interactive quizzes with both negative and non-negative marking systems to test your knowledge on various biology topics.

The app has a user-friendly interface and provides a comprehensive learning experience that covers different biology topics with detailed explanations. Users can track their progress and share their quiz scores with family and friends. G Biology is compatible with Android 9.0 and is a great tool for students and anyone who wants to learn biology in Hindi or English.

Overall, G Biology is an excellent resource for anyone looking to improve their biology knowledge and skills, with the added benefit of quizzes to test their understanding.