This app could be one of the best on the App Store, however somewhere along the way the developers tweaked it in a not-so-good-way.
It used to be you could enter an amount that you would like to pay (partial or in-full) and it would record it and display the updated amount - it no longer does this, so you are left with guessing the amount still owed after entering the partial.
Fix this and it will be awesome.
mauser98k about Chronicle - Bill Organizer, v6.6.2