khushoo in prayer this app give you 33 ways o reasons to have khushoo in salah like :
-Thinking about the Aayath & Adhkaar being recited during Salah & interacting withthem
-Pausing at the end of each Aayah.
-Reciting in slow, rythmic tone (Tarteel) and making one's voice beautiful while reciting.
-Knowing that Allah responds to Salah
and other reasons explicated with details in this app
I wish you learn these ways and Assalamu alaykom wa rahmatu allah