Best Investment Apps for Beginners in the United States

Platform Breakdowns

Fidelity

Fidelity is the strongest all-around platform for beginners in the United States. It has served everyday investors for over 75 years and currently manages money for more than 40 million people.

No minimum. No fees on U.S. stocks or ETFs. More beginner education than almost any competitor. And a mobile app that makes it easy to invest from anywhere.

Minimum investment: $0 Fees: $0 for U.S. stocks and ETFs Ease of use: Very easy Best for: Overall beginners, long-term investors, immigrants starting their U.S. financial journey

Pros

• No account minimum and no trading fees
• Fractional shares from $1 — buy any stock for any amount
• Excellent educational tools built for new investors
• Strong customer service including phone support
• One of the most trusted financial institutions in America

Cons

• Many features — some beginners may not need them all at first
• ITIN holders should call customer support before applying online

The bottom line: This is where most beginners should start. Open an account today. Every month you delay is growth you will never recover.

👉 Start Investing with Fidelity

Acorns

Acorns was built for one specific person: someone who wants to invest but does not feel ready.

It rounds up every purchase to the nearest dollar and invests the difference automatically. Buy a coffee for $3.75 and Acorns invests $0.25. Small amounts — but the habit builds something real.

Minimum investment: $0 to open; $5 to begin investing Fees: $3/month Ease of use: Extremely easy — nearly everything is automatic Best for: Complete beginners, people starting with very little, anyone who struggles to save consistently

Pros

• Invests spare change automatically — nothing to decide
• No financial knowledge required
• Includes retirement account options
• Powerful psychologically — you see growth from day one

Cons

• $3 monthly fee is proportionally high on very small balances
• Limited control over individual investments
• Not designed for larger portfolios long-term

The bottom line: If the biggest barrier is “I don’t have enough to start,” Acorns removes that excuse. Build the habit here, then graduate to Fidelity as your balance grows.

👉 Get Started with Acorns

Betterment

Betterment is a robo-advisor. It builds and manages your investment portfolio automatically based on your goals. You answer a few questions at setup — and Betterment handles the rest permanently.

For immigrants who feel overwhelmed by investment decisions, this removes the problem entirely.

Minimum investment: $0 Fees: 0.25% per year ($2.50 per year on every $1,000 invested) Ease of use: Extremely easy — full setup takes about 10 minutes Best for: Busy beginners who want professional-quality investing without making decisions

Pros

• Fully automated portfolio building and rebalancing
• Tax-efficient strategies built in
• Goal-based tools keep you focused on outcomes
• Nothing to manage after initial setup

Cons

• Annual fee applies, though it is low
• Less flexibility for people who want to choose specific investments

The bottom line: If you want to invest properly but making decisions feels overwhelming, Betterment is the right answer. Pay 0.25% per year and let it handle everything.

👉 Open Account with Betterment

Vanguard

Vanguard was founded on one principle: keep costs as low as possible so investors keep more of their own money.

It invented the index fund — the investment type most financial professionals recommend for long-term wealth building. Millions of Americans use Vanguard for exactly this reason. It does not try to beat the market. It tracks it, at the lowest possible cost.

Minimum investment: $0 for brokerage account; some funds have minimums Fees: $0 for stock and ETF trades Ease of use: Moderate — reliable but less polished than Fidelity Best for: Long-term investors focused on building wealth over decades at the lowest possible cost

Pros

• Industry-leading low-cost index funds
• Ownership structure aligns Vanguard’s interests with yours
• Excellent for retirement accounts (IRA, Roth IRA)
• Trusted by professional and everyday investors worldwide

Cons

• App and website less modern than competitors
• Customer service response times can be slower
• Some funds require minimum investments

The bottom line: If you are thinking in decades, Vanguard is one of the most respected long-term platforms in the world. Lower costs compound into real money over 20 or 30 years.

👉 Get Started with Vanguard

Charles Schwab

Charles Schwab is a full-service brokerage with over 50 years of history. Like Fidelity, it charges nothing on U.S. stocks and ETFs and requires no minimum to open an account.

Schwab is a strong option if you want everything Fidelity offers — plus the option of walking into a physical branch. Schwab has hundreds of locations across the United States.

Minimum investment: $0 Fees: $0 for stocks and ETFs Ease of use: Easy to moderate — full-featured with strong support Best for: Investors who want a trusted Fidelity alternative with in-person support available

Pros

• No minimums, no trading fees
• Fractional shares available
• Physical branches across the U.S.
• Strong customer service and educational resources

Cons

• Platform has many features new investors may not immediately need
• Mobile app slightly less intuitive than Fidelity

The bottom line: If you want everything Fidelity offers but prefer the option of speaking with someone face to face, Schwab is an equally strong choice.

👉 Open Account with Charles Schwab

Important Note for Immigrants and ITIN Holders

Please read this before you apply anywhere.

To open most investment accounts in the United States, you will need either a Social Security Number (SSN) or an Individual Taxpayer Identification Number (ITIN).

SSN holders can open accounts with all platforms on this page without restrictions.

ITIN holders have fewer options. Most major brokerages technically require an SSN. However, some ITIN holders have successfully opened accounts with Fidelity and Schwab by calling customer service directly and providing supporting documentation.

Documents typically required:

• SSN or ITIN
• Government-issued photo ID (passport, driver’s license, or state ID)
• U.S. residential address
• Date of birth

If you hold an ITIN: call the platform’s customer service line before submitting an online application. Ask specifically about ITIN eligibility. Policies vary by situation, and a direct conversation gives you the clearest answer.

You do not need to be a U.S. citizen to invest. Green card holders, visa holders, and many other non-citizens can legally open investment accounts. The key requirements are a valid tax identification number and a U.S. address.

How Investing Works — Simply Explained

Stocks are small pieces of ownership in a company. When the company grows, your investment can grow. Individual stocks carry meaningful risk because your money depends on one company’s performance.

ETFs (Exchange-Traded Funds) bundle hundreds or thousands of stocks together into one investment. Instead of one company, you own a small piece of many. This is safer, simpler, and what most professionals recommend for beginners.

Diversification means spreading your money across many investments so that one bad outcome does not destroy everything. ETFs do this automatically.

Long-term investing means leaving your money invested for years — not months. Time is the most powerful force in building wealth. The market will go up and down. That is normal. Investors who stay patient are the ones who win.

A Real Example

Imagine you invest $100 per month starting today.

At an average annual return of 7% — roughly the historical long-term average of the U.S. stock market — here is what could happen:

• After 10 years: approximately $17,000
• After 20 years: approximately $52,000
• After 30 years: approximately $121,000

You contributed $36,000. The remaining $85,000 came from growth — money your money made on its own.

Returns are never guaranteed. But the principle is real: starting early matters more than starting with a large amount. Every month you wait is a month of compounding you cannot get back.

A Safe Strategy to Start

Start small. Even $25 or $50 per month is a real start. The habit matters more than the amount.

Invest consistently. Set up automatic monthly contributions. Invest the same amount every month, regardless of what the market is doing.

Choose a broad ETF. A total market ETF or S&P 500 ETF gives you diversified exposure to hundreds of companies in one investment — simple, low-cost, and widely recommended.

Do not try to time the market. No one can reliably predict when to buy or sell. Monthly automatic investing removes this mistake entirely.

Leave it alone. Review your portfolio a few times per year at most. Daily checking creates anxiety and bad decisions.

Common Mistakes to Avoid

Waiting until you have more money. Starting with $25 today beats waiting years to start with $500. Time in the market is what matters.

Trying to get rich quickly. Slow, consistent, diversified investing is how real wealth is built. Anyone promising fast guaranteed returns is almost always a scam.

Not diversifying. Concentrating all your money in one stock is unnecessary risk. A broad ETF solves this automatically.

Selling when the market drops. Markets go down regularly. That is normal. Selling during a drop turns a temporary paper loss into a permanent real one. Staying invested through downturns is one of the most valuable things you can do.

Investing money you cannot afford to lose. Only invest money you will not need for at least three to five years. Emergency savings belong in a savings account — not the market.

Not starting at all. Every month you delay is money you will never recover. Starting now matters more than starting perfectly.

Frequently Asked Questions

Can immigrants invest in the United States? Yes. You do not need to be a U.S. citizen. Visa holders, green card holders, and many non-citizens can legally open investment accounts. The main requirements are a valid tax identification number (SSN or ITIN) and a U.S. address.

Can I invest without a Social Security Number? Possibly. ITIN holders have fewer options, but Fidelity and Schwab may work with you if you contact customer service directly before applying. We recommend calling first to understand your specific situation.

How much money do I need to start? All five platforms on this page have $0 account minimums. Many allow investments starting at $1. You do not need a large amount — you need to start.

Is investing safe? All investing carries risk and your money can lose value, particularly short-term. However, investing in diversified ETFs over the long term has historically been one of the most reliable ways for ordinary people to build wealth. Risk decreases significantly when you stay diversified and invest consistently over many years.

What is the best app for beginners? Fidelity for most people — zero fees, zero minimum, strong educational tools. Betterment if you want full automation. Acorns if you want to start with the smallest possible amounts.

How long should I keep my money invested? At minimum five years. Ideally ten or more. The longer your money stays invested, the more time it has to grow and recover from any short-term drops.

Do I have to pay taxes on investment gains? Yes. If you sell an investment for more than you paid, you may owe capital gains tax. The rate depends on how long you held the investment and your income. Your platform’s tax documents and a qualified tax professional can help clarify what applies to your situation.

Your Final Decision

Here is exactly what to do:

If you want one trusted platform with no fees and no complexity → open a Fidelity account today. Set up a monthly automatic investment of whatever you can afford — even $25 — and buy a total market ETF. That is it. That single decision puts you ahead of the majority of people who keep waiting.

If making any decisions feels overwhelming → use Betterment. Answer a few questions, set your monthly contribution, and let the platform handle everything permanently.

If you want to start with the smallest possible amount → use Acorns. Connect it to your bank account and let it invest your spare change while you build confidence.

Once you have invested consistently for six to twelve months, you can explore Vanguard or Schwab for additional accounts.

But right now: open a Fidelity account. Make your first contribution. Every month you delay is money you will never recover.

👉 Start Investing with Fidelity 👉 Open Free Account 👉 No Minimum Required

This page is for informational purposes only and does not constitute financial advice. All investments involve risk, including the possible loss of principal. Past performance does not guarantee future results. Always conduct your own research and consider consulting a licensed financial advisor before making investment decisions.