The Ukrainian Orthodox Prayer Book, also known as the Українська Православна молитовник (Ukraїnsika Pravoslavna molitovnik), is a free Android application developed by Mirko Martinović. It belongs to the Education & Reference category and specifically to the Books subcategory. The app features a comprehensive collection of prayers, including Богородице Діво, Отче наш, and many others.

The app's interface is user-friendly, with simple navigation and easy-to-read text. The prayers are organized by category, making it easy to find the right prayer for any occasion. The app also includes a feature that allows users to request additional prayers to be added in future updates. If you are looking for a complete and easy-to-use prayer book, the Ukrainian Orthodox Prayer Book is definitely worth checking out.