Share your insights or perspective on the financial matter presented in the input.

Why haven't there been personal finance apps or softwares that use regression modeling or A.I.?
How would they make money from it?   They sell you the software for $100 (US example; could as easily be 100 Euros or 10,000 Japanese Yen).  You use it to make recommendations on your blog.  Your blog becomes rich from advertising.  They sold $100 worth of software.  If they spent $1 million in labor developing it, they're way behind.   Another problem is that the software would stop working and need adjusted periodically.  This is easy to do on a server but annoying on a PC.  And who pays for the adjustments?   Put both those things together, and it's a lot easier to do on a server.  Another advantage is that a server can get a better data feed as well.  Pay a premium for the detailed information rather than relying on public sources.  And people are used to renting server access where they expect to buy software once.   Another issue is that they are unlikely to beat the market this way.  Yes, AIs have done so.  But that's the latest AI, constantly adjusted.  This is going to be a previous generation AI.  It's more likely to match the market.  And we already have a way to match the market:  an index fund.   If someone had a brilliant AI, the best use would probably be to sell it to a fund manager.  The fund manager could then use the AI to find opportunities for its existing investors.  Note that a $10 billion fund with a 10% return that gives a .1% commission would be paying $1 million.  And that has no marketing or packaging overhead.  Think $10 billion is a lot?  Fidelity has $2 trillion.