Both apps promise to make investing feel less intimidating. They also charge monthly fees, which makes the choice trickier than it looks. Acorns vs Stash usually comes down to how hands-on you want to be.
Acorns is built around automation. It rounds up your spare change and invests it for you. Stash leans toward learning, letting you pick individual stocks and ETFs while it nudges you along the way.
This comparison breaks down fees, features, and account types so you can match the app to your habits. None of this is financial advice, just a side-by-side look at what each one offers. If you're still weighing whether to invest at all, our saving vs investing breakdown is a good starting point.
Acorns at a Glance
Acorns started with one simple idea: invest spare change. When you spend $4.30 on coffee, the app rounds up to $5 and invests the extra 70 cents in a diversified portfolio.
The portfolios are built from ETFs and matched to your risk tolerance. You can also set up recurring transfers, add lump sums, and get cashback from partner brands routed straight into your investments.
Acorns charges a flat monthly fee. The tiers usually include a basic plan with investing, retirement, and checking, plus a higher tier that adds custodial accounts for kids and a few extra perks.
Stash at a Glance
Stash takes a more hands-on approach. You can pick fractional shares of individual stocks and ETFs, which means you can own a slice of a pricey company for a few dollars.
The app sorts investments into themes like clean energy or technology, which helps newer investors connect ideas they know with stocks they buy. Stash also offers a Stock-Back debit card that rewards spending with fractional shares.
Like Acorns, Stash uses a flat monthly subscription. Higher tiers include retirement accounts, custodial accounts, and a small life insurance benefit through a third party.
Fees Compared
Both apps charge a monthly fee instead of trading commissions. That structure can be a fine deal at higher balances and an expensive one at very low balances. If you're investing $20 a month and paying $3 in fees, that's 15 percent of your contribution disappearing right off the top.
As your balance grows, the flat fee becomes a smaller share of your account. That's why both apps tend to make more sense once you're consistently investing a few hundred dollars a month or more.
Compare this with commission-free brokerages like Robinhood and Public, which charge no monthly fee for standard accounts. If you want a hybrid app that adds banking features too, SoFi vs Robinhood compares two popular alternatives. The trade-off with no-fee brokerages is that you lose the automation and guided experience that Acorns and Stash offer.
Public
Public
Investing for those who take it seriously. Invest in stocks, bonds, options, crypto & more.
Standout feature
A 5%+ yield Bond Account paired with 3.3% APY on cash — Public is one of the only consumer apps where idle and conservative money is treated as seriously as the equity portfolio.
Fees
Free
Pros
• Invest in stocks, bonds, crypto & more• Earn 3.3% APY* on your cash with no fees• 1% match when you transfer your portfolio• Lock in a 5%+ yield with a Bond Account
Cons
Customer support is in-app and email only, no phone
Features That Set Them Apart
Acorns' big edge is automation. Round-ups, recurring deposits, and cashback rewards work in the background without much effort. If you're the kind of person who knows they won't sit down and manually pick investments, Acorns can carry the load for you.
Stash's edge is choice and education. You pick what you own, which can be motivating, and the app provides explainers, articles, and budgeting tools along the way. The Stock-Back card rewards spending with stock instead of cashback.
Both apps support IRAs in their higher tiers, so you can use them for retirement savings. Custodial accounts for kids show up on both as well, though the rules and fees differ slightly.
Which One Fits Your Style
If you want to set it and forget it, Acorns leans that way. The round-ups and recurring deposits help you save without thinking about it. Some people find that lack of friction is the only reason they invest at all.
If you want to learn while you invest and have opinions about specific companies, Stash gives you more control. Fractional shares mean you can build a small but diverse portfolio without needing thousands of dollars. Younger investors juggling tuition and side income may also want to check our roundup of the best investing apps for college students for context.
There's also nothing wrong with starting on either and switching later. Many investors outgrow these apps as their accounts grow, then move to a larger brokerage with no monthly fee.
Building a Strong Financial Base
Investing apps work best when the rest of your finances are steady. Credit card debt, missed payments, and a thin emergency fund can pull money away from investing faster than any app can grow it.
Firstcard's credit builder card gives users a way to build credit history while keeping monthly costs predictable. Better credit can reduce interest rates on future loans, which frees up money to invest. Pairing it with free credit monitoring makes it easier to track progress.
Neither Acorns nor Stash is the best at everything, and the right pick depends on your goals. The bigger win is starting the habit. Small amounts invested consistently usually beat perfectly chosen investments started years late.
Frequently Asked Questions
Are Acorns and Stash safe to use?
Both apps are registered investment advisers and use brokerages that carry SIPC insurance on the securities side. That protects against firm failure, not investment losses. Stocks and ETFs in either account can still drop in value.
Can I use both Acorns and Stash?
Yes, you can have accounts at both, though you'll pay two monthly subscriptions. Most people don't need both. Pick the one that matches your style and put the saved fees toward more investments.
How much money do I need to start?
Acorns can start investing once you have $5 in your account. Stash also lets you start with very small amounts thanks to fractional shares. The bigger question is whether your monthly contributions will outweigh the subscription cost.
What if I want to move my money to another brokerage?
Both apps allow account transfers, though they may charge a transfer-out fee. You can also sell holdings and withdraw cash, though that may trigger taxes if your investments gained value. Check the fee schedule before you move money.
