A free program for Android, by Srujan Jha.

Sanskrit Ashtadhyayi Sutrani is an app developed to provide offline access to the most comprehensive, authoritative, and scientifically-based Ashtadhyayi (a branch of Vedic literature) with a wealth of information on a wide range of topics. This app contains everything that you would expect to find in a scientific library, and more: you can access the most comprehensive collection of Ashtadhyayi with its various aspects, including philosophy, religion, grammar, literature, etc. This app is a unique resource that provides access to the entire Ashtadhyayi in a format that is easy to read and understand, and at the same time, provides a comprehensive insight into the various aspects of this vast literature.