دعای توسل Dua Tawassul is a free Android application developed by DevGuy. It belongs to the Social & Communication category and is a multilingual app available in English, Arabic, and Farsi. This app is designed for the Shia Islam community and is used for reciting a prominent supplication, which has been written in the book of Bihar al-Anwar. The supplication is recited by the Shi'ites within Iran altogether in religious places on Tuesday eves. It can also be used to bless a community or gathering.

One of the most notable features of this app is the ability to change the font size and the space between lines. The app also offers a dark and night mode, making it easier to read in low light environments. Additionally, the app comes with a translation feature, making it easier for users to understand the supplication.