S2S Classes is an Android application developed by s2s that offers tutorial services to students in Delhi-NCR studying in 8th to 12th classes. It aims to provide extra help to students who need it with competitive examinations for Engineering/medical, build a foundation for them in 9th and 10th classes, guide them in choosing a suitable course, and plan their future better.

The app has a team of tutors who are themselves graduated from IITs and NITs and have more than 10 years of experience in teaching for competitive examinations. They provide highly personalized approach to bring out the best in the student. With S2S Classes, students can access tutorial services anytime and anywhere, making it convenient for them to learn and study at their own pace.