You have to have a bank account because your Acorns investments will come out of that account. The credit cards you put in are only for using the transaction amounts to calculate how much each transaction from your bank account to acorns will be.
Do acorns actually work?
Acorns works best when the dividends are reinvested back into your portfolio. This is a compounding effect and will multiply your earnings. So resist the temptation to withdraw your gains. It's best to start with $100+. You can start on Acorns with just $5. I would recommend trying to get your balance up above $100 as fast as possible.
How good is acorns?
Acorns is one of the best micro investing apps. It is easy to use and has an amazing learning platform for beginner investors. The monthly fee of $3-$5 might be worth it if you have an account with enough money in it. Of course, you can do all of this on your own for free, if you're a disciplined saver/investor.
