কষ্টের বাংলা গান - Koster Bangla Gan is a free Android application developed by Priyo Bangla under the Lifestyle category. The app is a collection of heart-wrenching and soulful Bengali songs that will touch your heart. The app features a handpicked selection of Bengali songs that evoke feelings of sadness, heartbreak, and melancholy. It includes songs from renowned Bengali artists, and only focuses on sad or heartbroken songs, making it the best album of sad songs you can find in one place.

The app includes lyrics for all the songs, allowing you to sing along with the audio. All the data provided in the app is copyright-free. If you have any complaints or suggestions regarding the app, you can contact the developers. With Koster Bangla Gan, you can listen to the best sad Bengali songs ever made, all in one place.