Thần Chú Lăng Nghiêm is a free educational app available on Android. This app is developed by saokhuedl and falls under the Education & Reference category, specifically in the Books subcategory. The app is designed to provide users with a deeper understanding of the Śūraṃgama-samādhi-sūtra, also known as the Lăng-nghiêm kinh.

This app is completely free and does not require any activation through SMS. Additionally, it does not send any SMS or collect personal information from its users. The app is focused on providing users with accurate and relevant information about the Buddhist scriptures. The app also includes information about the teachings of the scripture and how it relates to the practice of meditation. Users looking to learn more about Buddhism will find this app to be a valuable resource.