But before we look at the solutions I would like to raise the questions what are unsolved jobs in your personal finances. What annoys you? What is great and more people should know about? What are needs you think are so obvious, that there should be solutions to it?
Personal finance can anything from cash management, expense management, payments, saving and investing, financing your house or your car, saving for the silver age (pensions) etc… If you have a family, think about your family financial affairs. If you are a patchwork family, what are special jobs there?