Salaam,

As you have added a weekly summary of all namaaz, could we also have a monthly summary as too how many namaaz were missed ( a small tally at the bottom of the page) also which namaaz's.

You could also add a "How many namaaz made up for" feature which after praying qazah you could reduce one off the tally. But remember to highlight it as a Qazah make up instead of praying it on time.

Should be easy enough to implement development wise, if missing a namaaz = 0, then add all the zeros into an array and allow it to be modified by removing one of the end each time a Qazah has been completed.