Class 9 Science Guide Book is an excellent educational app that provides a complete solution for science students. The app is available for free on Android devices and is developed by Sajilo Kitab. The app is designed to cater to both students and teachers as a reference book for learning and teaching science. It can also be used for home-based self-preparation.

The app is user-friendly and easy to navigate, thanks to its simple interface. It offers full chapter solutions in PDF format, making it easier for students to learn, revise and prepare for their science exams. The zoom feature allows students to zoom in on specific areas of the text for more focused reading.