Picking your first investing app can feel harder than actually investing. Acorns, Robinhood and Fidelity all promise the same thing: an easy way to start. But they’re built for different kinds of beginners, and the “best” one really depends on how involved you want to be.
This guide breaks the decision down by what kind of investor you are, not by which app has the flashiest marketing. We’ll also cover fees, minimums and a few things that catch new investors off guard.
This article is for general education only. It isn’t personalized investment, tax or legal advice. Investing involves risk, including the possible loss of principal, and past performance doesn’t guarantee future results.
Start with a question: how involved do you want to be?
Before comparing apps, be honest about your own habits. Some people want to “set it and forget it.” Others want to research a company and buy a few shares themselves. A few want a full brokerage they can grow into over the next decade. There’s no wrong answer here, but the right app changes depending on which one describes you.
“I don’t want to think about it”: Acorns and micro-investing apps
Acorns is built around round-ups: it links to your debit or credit card, rounds each purchase up to the nearest dollar, and invests the spare change into a diversified portfolio of ETFs. You’re not picking stocks. You’re not checking charts. The app does the allocation for you based on a risk profile you set once.
That hands-off design is the whole appeal, and it’s also where the catch lives. Acorns charges a flat monthly fee (plans have run in the $3 to $12 per month range as of mid-2026, and may change), not a percentage of your balance. On a small account, that flat fee can eat a meaningful chunk of your returns. A $50 balance paying $3 a month works out to over 70% a year in fees alone, which is a rough deal by any measure.
Acorns tends to make sense if:
- You know you won’t manually contribute on your own
- You’d rather invest spare change than think about specific dollar amounts
- You plan to grow your balance fairly quickly so the flat fee shrinks as a percentage
If your balance is going to sit under a couple hundred dollars for a while, a fee-free option that lets you invest lump sums manually may serve you better.
“I want to learn as I go”: Fidelity and full-service brokerages
Fidelity, along with peers like Charles Schwab and Vanguard, represents the “grow into it” option. There’s no account minimum to open a brokerage account, trades on US stocks and ETFs are commission-free, and fractional shares start at $1. That means you can put $25 into a stock trading at $400 a share and actually own a slice of it.
What sets Fidelity apart from newer apps isn’t flash, it’s depth. You get research reports, retirement account options (Roth IRA, traditional IRA), customer service you can actually call, and educational content that explains concepts instead of just showing you a buy button. NerdWallet’s 2026 roundup of investing apps for beginners ranks Fidelity as its overall pick for exactly this reason: it works for a total beginner and doesn’t box you in once you’re ready to do more.
Fidelity tends to make sense if:
- You want to learn the basics of investing, not just automate them
- You’re thinking about retirement accounts alongside a regular brokerage account
- You want one platform you won’t outgrow in a year or two
“I want to pick my own stocks”: Robinhood
Robinhood popularized commission-free trading and built its interface around simplicity: a clean app, fractional shares from $1, and a fast account-opening process. If you already have a few companies in mind and want to buy shares directly, Robinhood removes almost every barrier to doing that today.
The tradeoff is that Robinhood’s simple design can make higher-risk features, like options trading and cryptocurrency, feel just as easy to tap into as a basic stock purchase. Those products carry real risk of fast, significant losses and aren’t a fit for most beginners. If you go with Robinhood, it’s worth deliberately ignoring the options and crypto tabs until you understand how they work, not just because they’re available.
Robinhood tends to make sense if:
- You already know which companies or ETFs you want to buy
- You want a simple, mobile-first experience over deep research tools
- You’re disciplined enough to avoid features you don’t yet understand
Fees and minimums compared
| App | Best for | Account minimum | Typical cost | Watch out for |
|---|---|---|---|---|
| Acorns | Hands-off, round-up investors | $0 to open, $5 to invest | Flat monthly fee, roughly $3 to $12/mo as of mid-2026 | Flat fee can be a high percentage on small balances |
| Fidelity | Beginners who want to learn and grow | $0 | $0 commission on US stocks and ETFs; fractional shares from $1 | More features than a total beginner may use at first |
| Robinhood | Investors who want to pick their own stocks | $0 | $0 commission on stocks and ETFs; fractional shares from $1 | Easy access to options and crypto tabs designed for experienced traders |
Fees and account terms change and can vary by state or account type, so confirm current pricing directly on each provider’s site before you open an account.
How to actually start investing with an app
Whichever app you land on, the setup process looks roughly the same:
- Gather your basics. You’ll need your Social Security number, employment info and a way to fund the account (bank account or debit card).
- Pick an account type. A standard taxable brokerage account is the simplest starting point. A Roth or traditional IRA makes sense if you’re specifically investing for retirement, since it changes how the money is taxed.
- Decide your first contribution. Even $10 to $25 is enough to open most of these accounts and start with fractional shares.
- Choose broad before specific. Many beginners start with a diversified index ETF before buying individual stocks, since a single company’s price can swing far more than the overall market.
- Set a recurring contribution if you can. Automating a small, regular deposit tends to matter more for long-term results than picking the “perfect” app.
What none of these apps can promise you
It’s worth saying plainly: no app, portfolio or advisor can guarantee a specific return, and any that implies otherwise should raise a flag. The Financial Industry Regulatory Authority (FINRA) and the Securities and Exchange Commission (SEC) both publish investor education resources that explain how markets actually work, including the reality that all investing carries risk of loss. That’s not a reason to avoid investing. It’s a reason to size your contributions to what you can afford to leave invested for years, not months.
A quick decision checklist
- Want it automated? Acorns, but watch the flat fee on small balances.
- Want to learn while you invest? Fidelity, especially if retirement accounts are part of the plan.
- Already know what you want to buy? Robinhood, and skip the options and crypto tabs for now.
- Not sure yet? Fidelity’s no-minimum, no-commission structure gives you room to figure it out without extra cost while you decide.
You can also use more than one. It’s common to keep a hands-off round-up app running in the background while learning the ropes on a full-service platform. There’s no rule that says you have to pick just one and stick with it forever.
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Frequently Asked Questions
What is the number one investing app for beginners?
There isn’t a single “best” app for everyone. Fidelity is a strong all-around pick because it has no account minimum, charges no commission on US stocks and ETFs, and offers room to grow. But Acorns fits people who want a fully automated experience, and Robinhood fits people who already want to pick their own stocks.
How much money do I need to start investing with an app?
Most modern investing apps, including Fidelity and Robinhood, let you start with as little as $1 thanks to fractional shares. Acorns typically needs a small balance (often around $5) before it invests your round-ups. Starting small is fine. Consistency over time matters more than the size of your first deposit.
How much will I make if I invest $100 a month?
This depends entirely on what you invest in, the fees you pay and how the market performs over your timeline, none of which can be predicted in advance. A financial calculator can model hypothetical scenarios based on assumed return rates, but any number it produces is an illustration, not a promise. There’s no app or strategy that guarantees a specific outcome.
Is Acorns or Robinhood better for beginners?
It depends on how hands-on you want to be. Acorns automates everything but charges a flat monthly fee that can be costly relative to a small balance. Robinhood has no flat fee and commission-free trades, but it puts you in the driver’s seat, including access to higher-risk products like options and crypto that beginners should approach carefully.
Are investing apps safe to use?
Reputable investing apps like Fidelity, Robinhood and Acorns are registered broker-dealers, and customer securities are typically protected by SIPC (Securities Investor Protection Corporation) coverage against brokerage failure, though SIPC doesn’t protect against investment losses from market performance. Before using any app, confirm it’s a registered broker-dealer through FINRA’s BrokerCheck tool, use strong unique passwords, and enable two-factor authentication.
Do I need a financial advisor before using an investing app?
Not necessarily for basic, long-term investing in diversified funds. But if your finances are more complex, multiple income sources, significant debt, or specific retirement and tax planning needs, a licensed financial advisor can offer guidance an app simply isn’t built to give.
