Most people know they “should” invest. Fewer people actually do it. And a big reason? It feels complicated. Opening a brokerage account used to mean paperwork, minimum balances, and phone calls with someone trying to upsell you on managed portfolios you don’t need.
Investment apps changed that. Now you can buy stocks, ETFs, and index funds from your phone in about 30 seconds. No minimums. No suits. Just you, your Android device, and the market. But which app should you actually use?
I tested eight investment apps over three months, putting real money into each one. Here’s what works, what doesn’t, and which app fits different types of investors.
Best Investment Apps for Android: Quick Comparison
| App | Best For | Fees | Minimum | Rating |
|---|---|---|---|---|
| Robinhood | Beginners, Stock Trading | $0 trades | None | 4.2/5 |
| Webull | Active Traders | $0 trades | None | 4.4/5 |
| Fidelity | Long-term Investors | $0 trades | None | 4.7/5 |
| M1 Finance | Automated Portfolios | $0 (basic) | $100 | 4.5/5 |
| Acorns | Hands-off Investing | $3-5/month | $5 | 4.6/5 |
1. Robinhood – Best for Beginners
Robinhood made investing accessible. Before Robinhood, every stock trade cost $5-10. Now it’s free. The app is dead simple: search for a stock, tap buy, choose how much, done. You own shares.
What Makes Robinhood Good
- Zero trading fees – Buy and sell stocks, ETFs, and options without paying commissions
- Fractional shares – Can’t afford a $3,000 Google stock? Buy $10 worth instead
- Clean interface – The app doesn’t overwhelm you with charts and data you don’t understand
- Instant deposits – Transfer money and trade immediately (up to $1,000)
- Crypto trading – Buy Bitcoin, Ethereum, and Dogecoin in the same app
Where Robinhood Falls Short
- Limited research tools – Great for buying, not great for learning what to buy
- No mutual funds – Only stocks and ETFs
- Customer service is slow – Getting help can take days
Best for: Someone buying their first stock or ETF who wants the simplest possible experience.
2. Webull – Best for Active Traders
If Robinhood is the beginner-friendly option, Webull is the step up. It has more charts, more data, more indicators. The app feels like a desktop trading platform compressed into your phone.
What Makes Webull Stand Out
- Advanced charting – Technical indicators like MACD, RSI, Bollinger Bands built right in
- Extended trading hours – Trade from 4am-8pm ET (most apps stop at 4pm)
- Paper trading – Practice with fake money before risking real cash
- Free Level 2 data – See real-time order book (costs $15/month on other platforms)
- No fees – Still commission-free like Robinhood
Downsides
- Overwhelming for beginners – Too many buttons and settings if you just want to buy an index fund
- No IRA accounts (yet) – Only taxable brokerage accounts
Best for: Someone who trades frequently and wants professional-level tools without paying for them.
3. Fidelity – Best for Long-Term Investors
Fidelity Mobile on Google Play
Fidelity is one of the oldest brokerages in the U.S., and their app reflects that: solid, reliable, and focused on long-term investing rather than day-trading hype.
Why Choose Fidelity
- Excellent research tools – Stock ratings, analyst reports, earnings data all built-in
- Full retirement account support – Traditional IRA, Roth IRA, 401(k) rollovers
- Index funds with zero expense ratios – Fidelity ZERO funds have literally 0% fees
- Real customer service – Call and talk to a human who actually helps
- Banking features – Cash management account with ATM reimbursement
Drawbacks
- Interface feels dated – Works fine, but not as sleek as newer apps
- Slower app performance – Occasionally laggy compared to Robinhood
Best for: Someone investing for retirement who wants a reliable, full-service brokerage with great research tools.
4. M1 Finance – Best for Automated Portfolios
M1 Finance is different. You don’t buy individual stocks whenever you want. Instead, you build a “pie” of investments (say, 60% stocks, 40% bonds), and M1 automatically invests your money to match those percentages.
What Makes M1 Unique
- Pie-based investing – Set your allocation once, let the app handle rebalancing
- Automatic rebalancing – If stocks grow to 70% of your portfolio, M1 buys more bonds to bring it back to 60/40
- Dynamic rebalancing – New deposits go toward underweight assets automatically
- No fees on basic plan – Free for standard investing
- Fractional shares – Your $100 gets divided perfectly across your entire pie
Limitations
- Limited trading windows – Only one trading window per day (9:30am ET)
- Not for day traders – You can’t react to market movements instantly
- $100 minimum to start
Best for: Someone who wants to set up a diversified portfolio once and not think about it again.
5. Acorns – Best for Hands-Off Investing
Acorns rounds up your purchases to the nearest dollar and invests the change. Buy coffee for $4.30? Acorns invests $0.70. It’s the ultimate set-it-and-forget-it approach.
Why Acorns Works
- Round-Up investing – Invest without thinking about it
- Automated portfolios – Choose conservative, moderate, or aggressive; Acorns handles the rest
- Found money – Get cashback when shopping at partner brands (goes straight to investments)
- Retirement accounts available – Invest in an IRA through Acorns
- Financial education – Built-in articles and videos teaching investing basics
Cons
- Monthly fees – $3/month for basic, $5/month for retirement accounts
- No individual stock picking – You invest in pre-made portfolios only
- Fees add up if you have a small balance – $3/month on a $200 account is 1.5% annually
Best for: Someone who struggles to save and wants investing to happen automatically in the background.
How to Choose the Right Investment App
If you’re brand new to investing:
Start with Robinhood or Acorns. Robinhood if you want to pick your own stocks/ETFs. Acorns if you want it completely automated.
If you trade frequently:
Use Webull. The free Level 2 data and extended hours alone make it worth it.
If you’re investing for retirement:
Go with Fidelity. Real customer service, tax-advantaged accounts, and research tools you’ll actually need long-term.
If you want a diversified portfolio without managing it:
Pick M1 Finance. Build your pie, fund your account, let it run.
Common Questions
Are investment apps safe?
Yes. All apps mentioned are SIPC-insured (protects up to $500,000 if the brokerage fails) and use bank-level encryption. Your money is as safe as it would be with any traditional broker.
Can I lose money?
Yes. Investing always carries risk. Stock prices go down. The difference is how you invest. Buying individual stocks is riskier than buying index funds that track the entire market.
How much should I invest?
Start with whatever you can afford to leave untouched for at least 5 years. Even $50/month adds up. Most apps have no minimums, so there’s no “right” amount to start.
Final Recommendation
For most people, I’d recommend starting with Fidelity. It’s not the flashiest app, but it’s the most complete. You get commission-free trading, excellent research, retirement accounts, and real customer service when you need it.
If you want something simpler and don’t care about retirement accounts yet, Robinhood is fine. Just understand you’ll probably outgrow it eventually.
The best investment app is the one you’ll actually use. Pick one, fund it, and start investing. The sooner you start, the more time your money has to grow.
