My suggestion is to offer manageable bites of the rosary, one decade at a time, but during quiet time and trying to stay focused, a simple meditation for each hail mary. In the app this would look like choosing a mystery of the rosary, choosing what we wish to focus on such as meditations that dig deeper for moms or marriage or liturgical feasts or saints, etc. And then those 1-2 sentence meditations for each hail mary follow one after another, tapping each bead/meditation when we have finished that hail mary prayer. And of course the option for no voice but just words