Acorns is a micro-investing app that automatically rounds up your everyday purchases to the nearest dollar and invests the spare change into diversified portfolios. It combines a brokerage account, retirement accounts, a checking account, and custodial accounts for kids into one subscription-based platform. The idea is to make investing feel effortless, especially for people who haven’t started yet or don’t have large sums to put to work.
How Round-Ups Work
The core feature that made Acorns popular is called Round-Ups. You link your debit or credit cards, and every time you make a purchase, Acorns rounds the amount up to the nearest dollar. Buy a coffee for $4.35, and Acorns sets aside $0.65 in spare change. The app tracks these small amounts, and once your accumulated round-ups hit at least $5, the total transfers from your primary checking account into your Acorns investment account.
This happens automatically once you set it up. You don’t need to remember to transfer money or decide how much to invest each week. Over time, those small amounts add up. You can also set up recurring deposits on top of round-ups if you want to invest more aggressively.
What Your Money Gets Invested In
Acorns doesn’t let you pick individual stocks. Instead, it places your money into one of five pre-built portfolios, ranging from conservative (mostly bonds) to aggressive (mostly stocks). Each portfolio is made up of exchange-traded funds, commonly called ETFs. An ETF is essentially a basket of many different stocks or bonds bundled together, giving you broad diversification even with a small balance.
The ETFs in Acorns portfolios come from major investment firms like Vanguard and BlackRock. Depending on which portfolio you choose, you’ll own a mix of large U.S. companies, international stocks, government bonds, and corporate bonds. Acorns also offers the option to include a Bitcoin-linked ETF in your portfolio if you want some cryptocurrency exposure. When you sign up, the app asks you questions about your goals, timeline, and comfort with risk, then recommends a portfolio. You can override the recommendation and pick a different one.
Subscription Tiers and Costs
Acorns charges a flat monthly fee rather than taking a percentage of your balance. There are three tiers:
- Bronze ($3/month): Gives you a personal investment account, Round-Ups, and basic features. This is the entry-level plan for someone who just wants to start investing spare change.
- Silver ($6/month): Adds retirement accounts (IRAs) with a 1% match on new IRA contributions during your first year, plus the Mighty Oak Checking account.
- Gold ($12/month): Includes everything in Silver, bumps the IRA match to 3% in your first year, and adds custodial investment accounts and banking tools for kids.
One thing to keep in mind: a $3 monthly fee on a $100 balance works out to a 36% annual cost, which is extremely high. The fee becomes more reasonable as your balance grows. On a $5,000 balance, that same $3/month is roughly 0.7% annually, which is closer to what you’d pay at a traditional robo-advisor. Acorns makes the most financial sense once you’ve built up a balance of at least a few thousand dollars.
Account Types Beyond Investing
Acorns has expanded well beyond spare-change investing. Depending on your subscription tier, you can access several account types within the same app.
Retirement Accounts (Later)
Acorns Later gives you access to three types of Individual Retirement Accounts: Traditional IRA, Roth IRA, and SEP IRA. The standout feature here is the IRA match. Silver members get a 1% match and Gold members get a 3% match on new contributions during their first year. There’s a catch, though: you need to keep those contributions in your Later account for four years to actually earn the match. Withdraw early and you forfeit it.
Checking Account (Mighty Oak)
The Mighty Oak Checking account comes with no overdraft fees, no maintenance fees, and no ATM fees at AllPoint Network locations. It earns a 2.18% annual percentage yield on your balance with no minimum deposit or balance requirement. Your deposits are FDIC-insured up to $250,000 per depositor. The account comes with a debit card, and purchases made with it can feed directly into your Round-Ups.
Kids’ Accounts (Early)
Available on the Gold tier, Acorns Early lets you open custodial investment accounts for your children. The Gold plan also includes a kids’ debit card and banking tools designed to teach younger users about money. These are custodial accounts, meaning you manage them on behalf of your child until they reach the age of majority in your state.
How Your Money Is Protected
Acorns investment accounts are covered by the Securities Investor Protection Corporation (SIPC), which protects up to $500,000 per account (including a $250,000 cash limit) if the brokerage firm were to fail. This doesn’t protect against investment losses from market drops. It protects against the firm itself going under and your assets being lost.
Banking accounts, including Mighty Oak Checking and Early accounts, carry FDIC insurance up to $250,000 per depositor per ownership category. Banking services are provided through nbkc bank and Lincoln Savings Bank, both FDIC members. Your investment money and your banking money are protected by different mechanisms, but both have federal backing.
Who Acorns Works Best For
Acorns is designed for people who want to invest but find the process intimidating or haven’t been able to build the habit. The automation removes the decision-making friction: you don’t have to choose stocks, time the market, or remember to transfer money. If you’re already comfortable managing your own brokerage account or prefer picking individual investments, Acorns will feel limiting and its fees may not be worth it.
The app is strongest as a starting point. Someone in their twenties who links a debit card, turns on Round-Ups, and adds a small recurring weekly deposit can build a real portfolio over a few years without thinking much about it. As your balance grows and your financial knowledge deepens, you may eventually want to move some money to a lower-cost brokerage. But for getting started, Acorns removes nearly every barrier between “I should invest” and actually doing it.

