For Litemod sotckalyze, demo shows the limited date in year 2019, 2020.
Will the license version shows the longer timeframe over decades?
As far as timeframe is concerned there is no difference between Lite mode and Pro mode. I am not sure which demo you are referring to, you can simply try Stockalyze and see for yourself what all you can do with Stockalyze.
Let me know if you need any help. :)