Startup Idea : Personal finance overview

Hi, I'm working on some concept for my new idea and I'm looking for some feedback here. I want to make simple overview of my incoming and outgoing payments. I use Excel and task manager for my personal finance but it really suck. So I decided to try a new way and combine task manager, stats, calendar and notifications into one simple app. Some elements are missing here but I want to know your opinion and tips - http://cl.ly/image/0f1v1F211U19/o And what do you use for your personal finance? Because for me it's more comfortable to have some list and just check the things what I've already paid. I have some personal insurances and taxes as a freelance designer and I need to have some overview for it. Also I want to know how much money can I save for next month and how much I need to make to cover all my spending.