You must be thinking of the old Freedom Edition which is gone. There is not an income limitation to use Free Edition. But you must have a VERY simple return; and there is a limit of $1500 for a 1099DIV or 1099INT, or you have to upgrade to Deluxe.
-Use this IRS site for other ways to file for free. There are 8 free software versions available from the IRS Free File site
https://apps.irs.gov/app/freeFile/