This is why I wrote free, open-source budgeting software. All of the source is available on Github, and it is available on all OS-es.

https://github.com/reZach/my-budget

I'm tired of people being sneaky and selling all of our information and making billions off of us. Of course, we let them, but only because it's very confusing reading (and understanding) all the legal jargon.

(FYI - I'm actively developing this software, so if you have comments or wants, let me know and I can see if I can make it happen for you. Thanks friends of HackerNews).