BTB Online is a free Android application developed by Bank Baitushum that offers a range of services that cater to both online shopping and banking needs. The app provides a marketplace for a wide variety of products, including electronics, clothing, jewelry, books, and more. With the app, users can purchase items and opt for credit or installment payments, all from the comfort of their homes.

In addition to the shopping feature, BTB Online offers convenient banking services. Users can open a bank account remotely without leaving their homes, thanks to the app's remote identification feature. The app also allows users to change their mobile banking passwords and enroll in internet or mobile banking services.