Does anyone know of an app that lets a person input information about the cost of a purchase that compares that purchase to what that money might be worth if invested instead? I convinced my niece to start a Roth IRA, and I saw that type of app on social media, but the page refreshed before I could write down the name. I think it would be helpful for her to see how her money could be used best. Also, I believe it would be beneficial for me to use as well when I periodically wander into the Sale Gear Thread.
Thanks in advance, and Happy New Year.