Homebank is an open source budgeting tools which is very easy to use and features analytical option and pretty charts. It is also available mutli-cross platfrom, so you don't have to be only a linux user to use it. You can download the application from this link Homebank. If you like simple interface but with rich functionality, you can use this application to budget your personal or business spending.
I stumble upon this software when I was looking for a budgeting software. I generally use spreadsheet for an easy-accounting work. It's straight-forward but I don't like having to open spreadsheet and having to go through folders just to locate my personal account. So, I decided to browse some available options for my laptop. Voila, I found, Homebank. I tried to use it for several times but sadly, I was not consistent with my budgeting work.
You have the option to create a budget too which is the most useful option from this software. I personally like this feature from this homebank. Not only that you can create multiple account and not just one. As I said, my favorite feature is the budgeting feature. It allows me to keep track on how much I should spend in a month. So check out this simple and minimalistic budgeting tools.