Robinhood vs Acorns vs Stash 2026: Which Investing App Should You Use?

Quick Answer — Who Should Use Which

Choose Robinhood: if you want to buy individual stocks or ETFs with zero commissions and no monthly fee.

Choose Acorns: if you want to invest spare change automatically and never think about it.

Choose Stash: if you want guidance on what to buy, with small recurring investments.

Best for most beginners: none of the three — Fidelity with FZROX (0% fee) beats all three long-term.

The honest truth: Acorns and Stash both charge monthly fees that eat returns on small balances.

Robinhood, Acorns, and Stash are three of the most downloaded investing apps for beginners. They all claim to make investing easy — but they work in very different ways, charge very different fees, and suit very different investors.

This guide compares all three honestly, including the part most reviews skip: at small balances, the monthly fees on Acorns and Stash take a significant percentage of your returns. The math matters, and it changes the recommendation depending on how much you’re investing.

If you’re brand new to investing and haven’t yet decided where to start, how to invest your first $100 covers the foundational question — account type and what to buy — before you pick an app.

Robinhood vs Acorns vs Stash — Full Comparison

The Fee Problem — Why This Comparison Is Complicated

The biggest factor in choosing between these three apps isn’t the features — it’s what the fees cost you as a percentage of your balance.

Acorns Personal: $3/month = $36/year. On a $100 balance, that’s 36% of your balance in fees annually. On a $500 balance, it’s 7.2%. On a $1,200 balance, it’s 3% — which starts to roughly match what a reasonable investment return might be.

Stash Growth: $3/month = $36/year. Same math. At small balances, the fee percentage dominates your returns.

Robinhood: $0/month. No fee on the basic account. Their revenue comes from payment for order flow, which is a separate debate but doesn’t directly cost you a percentage of your balance.

If you’re investing $50-100/month and your balance is under $1,000, a $3/month fee on Acorns or Stash is taking 3-36% of your balance annually. At these amounts, Robinhood or Fidelity is significantly better.

Each App Reviewed Honestly

Robinhood — Best for Zero-Fee Stock and ETF Investing

Robinhood’s main advantage is simple: no monthly fee, no per-trade commission, and access to every US stock and ETF. If you know what you want to buy and want to buy it without paying extra, Robinhood is hard to beat on cost.

What Robinhood does well: Commission-free trades. Fractional shares (buy $10 of a $400 stock). Clean, simple app. Gold tier adds 4-5% APY on uninvested cash plus Morningstar research.

What Robinhood does poorly: The app’s design encourages frequent trading — checking prices, browsing stocks, seeing trending tickers. Frequent trading is one of the most reliable ways to hurt long-term investment returns. The best investing strategy for most people (buy an index fund and leave it) isn’t what Robinhood’s design optimizes for.

Roth IRA: Yes — Robinhood added Roth IRA accounts. If you use Robinhood, the Roth IRA is the right account type for most young investors. See open a Roth IRA for why.

Best for: People who want to buy individual ETFs or stocks without paying fees and have the discipline not to trade frequently.

Acorns — Best for Passive Round-Up Investing

Acorns’ core idea is round-up investing: link your debit or credit card, and every purchase rounds up to the nearest dollar, with the spare change invested automatically. A $3.50 coffee becomes $3.50 charged and $0.50 invested. It’s investing without noticing.

What Acorns does well: The round-up mechanism genuinely gets people investing who would otherwise never start. For someone who can’t maintain a savings habit but spends normally, Acorns runs in the background and accumulates money. The portfolios are pre-built and diversified — no decisions required.

What Acorns does poorly: The $3/month fee. On balances under $1,500, this fee is too high as a percentage of returns. Also: you don’t pick what you invest in — Acorns manages that for you, which is a limitation for people who want control.

Best for: Someone who has tried and failed to invest manually, wants zero decisions, and has a balance of $1,500+ where the $3 fee becomes more reasonable.

The Acorns math: if you round up $30/month in spare change and pay $3/month in fees, you’re paying 10% of your invested amount in fees. That’s extremely high. Acorns works better as a supplement to a primary investment account, not as a standalone strategy on small amounts.

Stash — Best for Learning What to Invest In

Stash sits between Robinhood and Acorns. You choose what to invest in (unlike Acorns) but from a curated set of theme-based portfolios and individual stocks, with educational explanations of each. It’s designed to teach as you invest.

What Stash does well: The educational content is genuinely good — each investment comes with an explanation of what it is, what it holds, and what the risk level is. For someone who wants to learn while investing small amounts, Stash provides more context than the other two.

What Stash does poorly: Same fee problem as Acorns. $3/month hurts small balances. No Roth IRA option. The theme-based portfolios (“Clean & Green,” “American Innovators”) are engaging but not necessarily better investments than a plain total market index fund.

Best for: A true beginner who wants to understand investments and is starting with very small amounts — as long as they’re aware the fees are high relative to their balance and plan to move to a lower-cost platform as their balance grows.

The Honest Take: None of These Is the Best First Investment Account

All three apps made investing accessible to people who otherwise wouldn’t start. That’s a real contribution. But for someone reading this guide who wants to build actual long-term wealth, the best first investment account is a Roth IRA at Fidelity — not Robinhood, Acorns, or Stash.

According to SEC Investor.gov, investment fees compound against you just as investment returns compound for you. Paying 0.00% (FZROX at Fidelity) versus 0.75% annually on a $10,000 portfolio over 30 years is a difference of thousands of dollars. The platform matters — and Fidelity wins on cost.

For the step-by-step guide to opening a Fidelity Roth IRA and buying your first index fund, see how to invest your first $100. It takes 15 minutes and sets up the best long-term structure available.

So Who Should Actually Use Each App?

For a direct head-to-head between just Robinhood and Acorns, see Robinhood vs Acorns — that guide goes deeper on each of those two specifically. And if you’re not yet sure where to keep your savings while building toward investing, see high-yield savings account — that comes before any investing app.

FAQs

Which is better — Robinhood, Acorns, or Stash?

For most young adults: Robinhood wins on cost (no monthly fee) and flexibility (any stock or ETF). Acorns wins for passive investors who want zero decisions. Stash wins for beginners who want education while investing small amounts. For building real long-term wealth, none of the three beats a Roth IRA at Fidelity using a 0.00% expense ratio index fund like FZROX — but Robinhood is the strongest of the three for people committed to these platforms.

Is Acorns worth it for beginners?

Acorns is worth it if your balance is consistently over $1,500 and you value the automation. At smaller balances, the $3/month fee ($36/year) takes a significant percentage of your returns. According to FINRA, investment fees have a compounding negative effect on long-term returns. For balances under $1,500, the fee impact on Acorns is meaningful enough to recommend Robinhood (no fee) or Fidelity instead.

Does Stash have a Roth IRA?

No. As of 2026, Stash does not offer Roth IRA accounts. This is a significant limitation for young adults, because a Roth IRA is the most tax-efficient investment account available to people in their 20s. If you’re choosing between Stash and the alternatives for retirement investing specifically, Stash is not the right platform. Robinhood added Roth IRAs in 2023, and Fidelity has always offered them with no minimums.

Should I use Robinhood or just go to Fidelity?

For most beginners, Fidelity is the better long-term choice. It offers a Roth IRA, FZROX (0.00% expense ratio — literally the cheapest fund available), and excellent educational resources. Robinhood’s app design encourages checking your portfolio and trading, which can hurt long-term investors who trade based on short-term price movements. If you want to buy ETFs and leave them alone for 20 years, Fidelity’s interface makes that easier. See open a Roth IRA for the Fidelity Roth IRA setup guide.

Can I use all three apps at the same time?

Yes — there are no rules against having accounts at multiple platforms. Some people use Acorns for automatic round-up investing and Robinhood or Fidelity for their primary index fund investments. The risk: managing multiple accounts creates complexity, and the Acorns fee still applies regardless of what else you’re doing. Before adding apps, make sure your what to do after your emergency fund is complete and your primary retirement account (Roth IRA) is funded first.  

The Bottom Line

Robinhood is the strongest of the three for cost-conscious investors — no monthly fee, access to all ETFs, and a Roth IRA option. Acorns works for passive investors with balances over $1,500. Stash is a learning tool best used as a starting point before moving to a lower-cost platform.

But the honest answer: if you’re building long-term wealth, open a Fidelity Roth IRA, buy FZROX, and automate monthly contributions. That structure beats all three apps on cost, tax efficiency, and long-term results — and takes 15 minutes to set up.

The decision between these three apps is a second-order question. The first-order question is: do you have an emergency fund, and is your retirement account set up? See what to do after your emergency fund for the priority order — investing in the right account type matters more than picking between these apps.

Sources

1. SEC Investor.gov — investment fees and long-term impact

2. FINRA — understanding investment fees

3. Consumer Financial Protection Bureau — investing basics

4. IRS — Roth IRA rules and benefits