Good start...

Not too bad. It has some nice features, but...
It would be great if we could scroll side to side with a swipe. More importantly when viewing the itemized expenses, we should be able to scroll left and right by swiping to quickly see where and on what were spending; not bouncing out and in to each day one at a time.
Im sure it will evolve so that when viewing expenses youll be able to easily see a list for total amount spent for items that are purchased frequently so you can quickly see how much youre spending on those particular items.
When viewing the percentages, it would be great to see ALL expenses, not just what appears to be the "top 5".
Looking forward to the updates!

TechnoGramps about Coins - Personal account book, v3.4.3