The Immortal Twenty-One App is an Android-based program developed by SAI Apps. It falls under the Education & Reference category and is a book subcategory. The app is free to download from the Google Play Store.

This app has been created to commemorate the history of the Language Movement, the history of Ekushey February 1952, and the history of International Mother Language Day. It provides an in-depth insight into the significance of the day and the events that led to it. The app is a great resource for anyone interested in learning about the Bengali language and its history.

Download The Immortal Twenty-One App today and share it with your friends to spread the word about this important day in Bengali history.