The 6th Class Social Science (SST) Solution in Hindi app by Sanjeev Mehta is a free educational app available on Android. It contains chapter-wise solved questions in Hindi medium for the NCERT Social Science (SST) Samajik Vigyan book of Class 6th. The app allows for direct search by page number and also features a night mode for comfortable reading.

The app includes three units: History, Geography, and Civics. The History unit covers topics such as the discovery of early humans, the beginning of cities, and the reign of Ashoka. The Geography unit talks about the Earth and its movements, maps, and India's climate, vegetation, and wildlife. Lastly, the Civics unit covers diversity, government, and the livelihoods of rural and urban areas.

In addition to the chapter-wise solved questions, the app also includes extra questions in the form of MCQs. Overall, the app is a helpful tool for students to improve their understanding of Social Science in Hindi medium.