Selling data is not part of mine. In fact, once the page loads you should be able to turn off your internet connection and have all the planning/simulation feat

Selling data is not part of mine. In fact, once the page loads you should be able to turn off your internet connection and have all the planning/simulation features still work. Everything stays client-side by default, the only way plan data is ever transmitted anywhere is if you upgrade to Premium and then choose to enable cloud synchronization (which is one of 3 different data persistence methods).