A free program for Android, by PANAGOLA.

Puja is a utility that will help you perform various Hindu prayers and rituals, such as puja to a particular deity or the whole Hindu pantheon. This app includes a large number of the most popular gods in Hinduism, such as Ganesha, Vishnu, Shiva, Rama, Krishna, Hanuman, Saraswati, Durga, Lakshmi, Muruga, Kartikeya, and many others. The app also includes the deities of some of the famous temples in India, such as Tirupati Balaji Venkateswara, Puri Jagannath, Sabarimala Ayyappa, Mookambika Devi, Madurai Meenakshi, and Guruvayurappan.

This is a utility that can be used on your phone or tablet, and it works in offline mode.