Bobby - Keep track of your subscriptions
GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.
Truebill - Find your paid subscriptions and cancel with one click
HomeBank - HomeBank is a free software. Use it to manage your personal accounts. It is designed to easy to use.
Trim - Manage and cancel your paid subscriptions
YouNeedABudget - Personal home budget software built with Four Simple Rules to help you quickly gain control of your money, get out of debt, and reach your financial goals!