You can upgrade your Household Accounting Book for a small amount in the Mac App Store to the full version Household Accounting Book 6.0 PREMIUM. The purchase extends this software by some useful functions and you support the further development of this program. The additional features are:

Detailed graphic visualization of your income and expenses
In addition to the graphical overviews, Household Accounting Book 6.0 PREMIUM enables you to create detailed charts of the distribution of you categories and sub-categories.

Development over time of your income and expenses
With the full versions you can show the development of your income or expenses over a defined time-span (e.g. over a year).

The payment is very easy and absolutely save...simply follow the instructions on the screen.