This application will allow you to navigate the surahs and verses of the Qur'an to obtain the exegesis / tafsir verse by verse according to Imam Ibn Kathir.
So you can read the Qur'an and work your understanding of the verses simultaneously and easily simply by clicking on the verse you are interested in.
Moreover this application keeps in memory and re-opens the application to the place where you stopped your reading it therefore allows a continuity in your reading of the Qur'an.