Nah, we would never steal any key.
As this is a project just for fun, totally FREE and people might use it a lot, we don't want to spend a ton of money just for fun.
We have some other projects that ask for the key after the trial, like
https://roadtripnavigator.com/
and others.
If you want to, check out http://samedayskunkworks.com to view all of our projects that we do just for fun ;)