The Mint.com Personal Finance app for Apple’s iOS iPhones, iPads and iPods quickly led me to a staggering realization: The application is not only astoundingly powerful; it’s quite sobering, too. But let’s take a step back. The Mint.com Personal Finance app is basically an iOS gateway application to the online Mint.com personal finance service. While you can sign up for the service within the app itself, I went to the Mint.com website first and signed up there. For best results, you’ll want to use the Mint.com service from both a Web browser as well as the Mint.com Personal Finance app.