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Broker Comparison

Acorns vs SigFig

Compare Acorns and SigFig side by side: fees, regulation, platforms.

Acorns

Acorns

Hands-off investors who want automated ETF portfolios

Acorns is an automated saving and investing app with ETF portfolios, Round-Ups, retirement accounts, and pric…

VS
SI

SigFig

Low-cost automated portfolio investors

SigFig is a US robo-advisor offering automated ETF portfolios, tax-loss harvesting, and free human advisor ac…

Head-to-head comparison

Acorns vs SigFig
Feature Acorns SigFig
Minimum deposit No minimum opening deposit or minimum balance required for Mighty Oak and Emergency Savings banking services -
Stock trading fee No commissions -
Regulators SEC, FINRA SEC
Best for Hands-off investors who want automated ETF portfolios Low-cost automated portfolio investors
Markets & account
Stocks
-
ETFs
Bonds
Investment Plans
-
Ready Made Portfolios
Funds
-
Fractional Shares
-

Pros & cons

Acorns

Acorns

Pros

  • Round-Ups invest spare change once it reaches at least $5
  • Automatic rebalancing keeps Base portfolio allocations on track
  • Dividends are automatically reinvested
  • No hidden costs, transaction fees, or commissions stated
  • Checking has no overdraft, maintenance, or AllPoint ATM fees
  • Gold adds individual stocks and ETFs to Custom Portfolios
  • SIPC protection up to $500,000 for Invest, Later and Early

Cons

  • Lowest listed subscription is $3/mo.
  • Gold costs $12/mo. for the full suite
  • Custom Portfolios are available only to Gold customers
  • Acorns Early Invest is a Gold subscription exclusive
  • Money Manager is available with Acorns Gold
  • No direct Bitcoin access; exposure is through BITO ETF
  • Investment products are not FDIC insured or bank guaranteed
SI

SigFig

Pros

  • No advisory fee on first $10,000 managed
  • 0.25% annual fee is in line with leading robo-advisors
  • Free access to human investment advisors
  • Automatic rebalancing included
  • Tax-loss harvesting included
  • Low underlying ETF expense ratios (0.07%-0.15%)
  • No deposit, withdrawal, or rebalancing fees
  • Assets held at established custodians (Schwab, Fidelity) with SIPC protection

Cons

  • $2,000 minimum is higher than some competitors (Betterment has no minimum, Wealthfront starts at $500)
  • No cash management or savings account
  • No demo account to test the platform before investing
  • Fractional shares only available through dividend reinvestment, not initial purchases
  • Limited portfolio customization - model portfolios focused on ETFs and funds
  • No crypto investing
  • Company announced rebrand to Tandems in September 2025; long-term consumer product direction is uncertain
Acorns

Acorns

Acorns is an automated saving and investing app with ETF portfolios, Round-Ups, retirement accounts, and pricing from $3/mo.

Visit Acorns Read review

Your capital is at risk. Other fees apply.

SI

SigFig

SigFig is a US robo-advisor offering automated ETF portfolios, tax-loss harvesting, and free human advisor access, with no fee on the first $10,000 managed.

Visit SigFig Read review

Your capital is at risk. Other fees apply.

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