By hand, one at a time, starting from your own statements. Each job gets its own page, and a page is added only once we have done that job for real, so the list is short for now.
Mind My Money does them on your own computer and asks you before anything that matters.
Cancelling a contract, switching electricity, finding out what the money actually went on: each is a job with a right way to do it, and the page you find first is usually the one designed to keep you paying. These are written out properly, and they hold whether or not you ever use any software to do them.
Runs on your own computer. Pay what you decide, including nothing.