Grantham is an iPhone app designed by Aniruddha Bhate, offering a rich collection of Marathi books for online purchase in both hard copy and e-book formats. The app provides a unique feature allowing users to explore theatre plays based on the number of male and/or female characters.

With Grantham, users can easily search for books using various filters like book name, author, genre, price, latest releases, and best sellers. The app also includes a My Library feature for offline reading and customization options such as font size, screen brightness, background color, and reading orientation. Users can synchronize their e-books across devices, share favorite books, receive notifications for new arrivals and promotions, and access a secure payment gateway for transactions.