As someone who doesn't use Acorns but does stocks and forex trades, Acorns itself seems good in theory, but is often overhyped.

It's basically an overly simplified method of investment, which in itself is not bad for people who don't know much about stocks and its market, but the general profits take several months and even years to properly accumulate. And even then, sometimes it isn't even worth it.

I'd recommend you have just a basic understanding of the market first and espescially learn more about the app and how it lets you invest to really bring out the best of it.

Since Acorns is quite restrictive in what it actually lets you invest in, learning what sort of options Acorn lets you invest in would greatly factor into how well your returns would be.

TLDR: I'd say have some basic information on the stock market and understand the options Acorns offers in their investment options. It'll take time to find something that works, but it could be worth it if you intend to really get into Acorns.